Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-12T13:18:12.071337Z
Paper Citation Record · LEDGER
As of 12 August 2026, this Paper Citation Record lists 49 of 49 outbound references and 0 inbound Pith citation observations for arXiv:2411.16367.
A citation records a reference. It does not transfer a finding from one paper to another.
Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-12T13:18:12.071337Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-12T06:34:41.77262+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links
A source-named dated measurement, never combined with another source.
Source: cited_works
49 of 49 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation 5f545b60-a942-4318-8f90-b7b82958a200 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws New two-dimensional slope limit ers for discontinuous Galerkin methods on arbitrary meshes [J]
Reference 1
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation a0144b90-0840-48a0-9639-e3eeff3c4284 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Hyperbolic Conservation Laws in Continuum Physics [M]
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 7e07d5c0-f5ed-4d45-bcec-34f6d171ed9c · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Unresolved cited work
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 14a99f43-5a10-44f4-a1bd-4c6747deb448 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A comparison of numerical fl ux formulas for the Euler and Navier-Stokes equations; proceedings of the 8th AIAA Compu tational Fluid Dynamics Conference, 1987 [C]
Reference 4
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation b1c31101-2de5-42b6-9b92-3a6fcf42ed96 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Flux vector splitting of the inviscid gasdyn amic equations with application to finite-difference methods [J]
Reference 5
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation f1a83bfb-4eda-4e1b-8a0b-deb6eb77769c · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Flux-vector and flux-difference splitting methods for the shallow water equations in a domain with variable depth [M]
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 82020a93-323a-427b-bf9c-184fb28f8407 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Ten years in the making-AUSM-family; proceedings of t he 15th AIAA Computational Fluid Dynamics Conference, F, 2001 [C]
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation aa1be9ec-1c94-4a19-b4bd-3858b14520e5 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Triangular mesh methods for the neutron tra nsport equation [Z]
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 9254edaa-1a22-463f-be4e-9173f94532fa · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws The Local Discontinuous Galerkin Method f or Time-Dependent Convection- Diffusion Systems [J]
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 4aa1e031-9335-4012-85bd-6f12c0ee7827 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A direct discontinuous Galerkin method for the generalized Korteweg–de Vries equation: Energy conservation and boundary effect [J]
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 71a607e4-4146-4ccc-8740-6a68a9dc535c · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A discontinuous Galerkin finite element method for time dependent partial differential equations with higher order derivatives [J]
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 3772aa27-bca8-42d9-8671-318753d3ec58 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws High order semi-Lagrangian discont inuous Galerkin method coupled with Runge-Kutta exponential integrators for nonlinear Vlasov dy namics [J]
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 103dd577-3279-4e83-b422-fac2afad1419 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws An Eulerian-Lagrangian discontinuous G alerkin method for transport problems and its application to nonlinear dynamics [J]
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 8c733c0b-ada1-4ed6-9671-0de4f17e19c6 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws TVB Runge-Kutta local projection disco ntinuous Galerkin finite element method for conservation laws
Reference 14
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 3134df72-c758-4f71-a49f-b57cde04546b · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws TVB Runge-Kutta local projec tion discontinuous Galerkin finite element method for conservation laws III: one-dimensional syste ms [J]
Reference 15
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 4886a11a-54a9-46b3-a716-e21bf3465330 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws The Runge-Kutta local projectio n discontinuous Galerkin finite element method for conservation laws
Reference 16
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation c7f445af-6e02-46f1-a503-97fb9304c253 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws The Runge-Kutta discontinuous Galerkin method for conservation laws V: multidimensional systems [J]
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 5d0d2bfa-7d37-4f66-8c7c-2fd7f77fabff · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws The Runge-Kutta local projection-disc ontinuous-Galerkin finite element method for scalar conservation laws [J]
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation bf1ecefa-d6e1-4656-8758-ecc1bb0d0563 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Parallel, adaptive finite elem ent methods for conservation laws [J]
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 3834b2ce-e7d6-44ab-b338-e7ad698086f7 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws An adaptive discont inuous Galerkin technique with an orthogonal basis applied to compressible flow problems [J]
Reference 20
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation df5cfe72-7747-43a7-985d-e96840edc759 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Point-wise and cell average error estimates of the DG and LDG methods for 1D hyperbolic and parabolic equations [J]
Reference 21
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 36571651-d959-4d4b-878b-434889d441a3 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Superconvergence of local discontinuous Gale rkin methods for partial differential equations with higher order derivatives [J]
Reference 22
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 501e26bb-7179-4b83-89ca-308a81048e1f · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Superconvergence of discontinuous Galerkin me thods for nonlinear delay differential equations with vanishing delay [J]
Reference 23
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 01b17446-813d-473b-a1f7-048977786edc · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Superconvergence of discontinuous Galerkin methods for time- dependent partial differential equations [J]
Reference 24
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 818e6335-8fa9-40f7-b2b8-47bca14af1cf · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Superconvergence of local discontinuous G alerkin methods for one-dimensional convection-diffusion equations [J]
Reference 25
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation a174cbef-450d-41bf-9ddb-1b4c469c2ed7 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws High Resolution Schemes Using Flux Limiters for Hyperb olic Conservation Laws [J]
Reference 26
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation f01964a2-3b7b-4935-918f-3f72ff982ffd · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Efficient Implementation of Weighted ENO Sc hemes [J]
Reference 27
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation bd2b1ad6-0cce-4f3e-8d0d-99a02fb1fe0c · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A simple weighted essentially nonoscillatory limite r for Runge-Kutta discontin- uous Galerkin methods [J]
Reference 28
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 4301df96-841d-4fb4-a900-a75bf0ac032a · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Runge-Kutta discontinuous Gale rkin method using a new type of WENO limiters on unstructured meshes [J]
Reference 29
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 80ca182e-4db3-444c-9030-de6af30eb32a · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Hermite WENO schemes and their application as limit ers for Runge-Kutta discon- tinuous Galerkin method: one-dimensional case [J]
Reference 30
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 8bb20cb0-a118-427e-bc39-de4d2d765449 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Hermite WENO schemes and their application as limit ers for Runge-Kutta discon- tinuous Galerkin method II: Two dimensional case [J]
Reference 31
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation c2d1eb13-ce6b-41cb-8e0e-22d8ad6eece8 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Hermite WENO schemes for Hamilton-Jacobi equ ations [J]
Reference 32
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 30be58a4-36bd-4fdb-ba01-ad6a517c4662 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws High Resolution Schemes for Hyperbolic Conservation Laws [J]
Reference 33
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation f4c2f8a5-5ffc-4f83-89ef-1ed0e159f8ac · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Essentially non-oscillatory and weighted essentially non -oscillatory schemes [J]
Reference 34
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation a3facb26-cf7f-44b8-bcb3-c1c4f3dcf400 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A Comparison of Troubled-Cell Indicators for R unge–Kutta Discontinuous Galerkin Methods Using Weighted Essentially Nonoscillatory Limiters [J]
Reference 35
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation f12c2687-cb3c-4357-ad95-13605fe2899a · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Shock detection and limiting with discontinuous Galerkin methods for hyperbolic conservation laws [J]
Reference 36
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 4cc11c34-902b-485f-876e-2d15ae9e94aa · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws High-order ENO scheme s applied to two- and three- dimensional compressible flow [J]
Reference 37
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation aaaabd00-5c88-4e9b-a28b-dc8aa83c7188 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A numerical study for the performance of the WENO schemes based on different numerical fluxes for the shallow water equations [J]
Reference 38
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 28d2e31b-4b9d-4878-8627-8a40f0ce4974 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A numerical study for the performan ce of the Runge-Kutta discontinuous Galerkin method based on different numerical fluxes [J]
Reference 39
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 3837d3f1-8354-42fb-80be-62f7d96b8675 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Approximate Riemann solvers, parameter vectors, an d difference schemes [J]
Reference 40
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 8d7d22e4-1693-4cb0-94ed-d9f826ddfdb4 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Numerical Methods for the Shallow Wate r Equations [D]
Reference 41
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 94bfe572-5f18-4ab6-ae62-2cf265adb174 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws An indicator-based hybrid limiter in discontinuous Ga lerkin methods for hyperbolic conservation laws [J]
Reference 42
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 3b0530ca-3248-43b7-adca-23e9ccb8a9ac · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Hermite WENO Schemes with Strong Stability P reserving Multi-Step Temporal Discretization Methods for Conservation Laws [J]
Reference 43
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation bcc96d8a-678a-4828-be60-810c5dda67a5 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws OEDG: Oscillation-eliminating discontinuous Ga lerkin method for hyperbolic conservation laws [J]
Reference 44
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 40697dc7-6aac-48ad-8180-491cee227443 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws A High Order Conservative Semi-Lagrang ian Discontinuous Galerkin Method for Two-Dimensional Transport Simulations [J]
Reference 45
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation aa4573a2-a990-4266-b42e-467e79bcd29f · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws I do like CFD, VOL.1, Second Edition [M]
Reference 46
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 1a3b1e64-a425-40d7-bea9-b621ca39927b · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws Discontinuous Galerkin methods: General approach a nd stability [J]
Reference 47
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 689819d3-399a-4dd1-afb2-679c33cc38a0 · outbound
Runge-Kutta Discontinuous Galerkin Method Based on Flux Vector Splitting with Constrained Optimization-based TVB(D)-minmod Limiter for Solving Hyperbolic Conservation Laws On a cell entropy inequality for discontinuous Galerkin methods [J]
Reference 48
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 9833f8f7-dbb7-4a33-9515-23caa107f437 · outbound
Reference 49
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
No inbound Pith citation observations are available.