Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links, observed 2026-08-14T14:22:35.249770Z
Paper Citation Record · LEDGER
As of 22 August 2026, this Paper Citation Record lists 60 of 60 outbound references and 0 inbound Pith citation observations for arXiv:1908.03302.
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 2026-08-14T14:22:35.249770Z
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-22T06:32:14.747728+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
60 of 60 outbound references displayed
External citation measurements
No source-named external measurement is stored.
Observation ece32ca6-8eed-4f12-bad0-4811ee1d760e · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Solid breast nodules: use of sonography to distinguish between benign and malignant lesions
Reference 1
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 0d3a5e74-3992-4812-bd25-1e1ff26b1914 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Quantitative cross- sectional imaging of ultrasound parameters,
Reference 2
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 67a90bc7-2845-4224-b47c-c42b76303cb1 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Empirical relationships between acoustic parameters in human soft tissues,
Reference 3
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 3564e48f-e6f2-4e56-a92a-833616f7632f · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Using speed of sound imaging to characterize breast density,
Reference 4
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation a0a6d304-980a-4baa-b7ac-ddc382696a53 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Quantitative assessment of mammographic breast density: Relationship with breast cancer risk,
Reference 5
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 00705b9f-0832-4c34-8a83-4010e99737f8 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Refraction corrected transmission ultrasound computed tomography for application in breast imaging,
Reference 6
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation a746145f-d8ed-4304-82f5-cb371f5316bb · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Regularization of image reconstruction in ultrasound computed tomography,
Reference 7
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation cef83221-e9a7-4bff-ba2c-e67a2b1c68ea · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography 3D ultrasound computer tomography: Hardware setup, reconstruction methods and first clinical results,
Reference 8
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 1f557b70-bea4-4766-bb9f-e6071ee58d01 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Diffraction effects upon finite-frequency travel times: A simple 2-D example,
Reference 9
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 5e5dca59-4481-4c7e-bad1-3849d7bf02ae · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography A guide to the limits of resolution imposed by scattering in ray tomography,
Reference 10
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 62c0a005-64d9-473d-8091-2fda37dc34cf · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Methods for forward and inverse scattering in ultrasound tomography,
Reference 11
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation bccef0e9-448e-472d-89c0-0524e13fa5c9 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Clinical results with ultrasound computed tomography of the breast,
Reference 12
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation a67287d7-6d4a-41a9-9685-cfe170213f80 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Sound-speed and attenuation imaging of breast tissue using waveform tomography of transmission ultrasound data,
Reference 13
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 7c6f1d07-0f7d-4fdc-bb38-0482da049f44 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Time domain reconstruction of sound speed and attenuation in ultrasound computed tomography using full wave inversion,
Reference 14
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation db3e267d-856e-411d-b043-402ecc1cf342 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Time-domain spectral-element ultrasound waveform tomography using a stochastic quasi-Newton method,
Reference 15
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation ba22bf1f-bce1-4062-89d6-2e19937f47c8 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography 3D imaging of the breast using full-waveform inversion,
Reference 16
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation f7e61c0e-8a72-4ec4-8bc7-3f0517c8999f · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Frequency domain ultrasound waveform tomography: breast imaging using a ring transducer,
Reference 17
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 69cc151d-517d-4a20-a835-8373f3d5a7f3 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography A computer simulation study of soft tissue characterization using low-frequancy ultrasonic tomography,
Reference 18
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation d92df259-d56e-4ce8-b550-d123a044e2a6 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Three-dimensional nonlinear inverse scattering: Quantitative transmission algorithms, refraction corrected reflection, scanner design and clinical results,
Reference 19
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 14369ce3-825c-4c71-8183-dca2202b6587 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography 3D frequency-domain ultrasound waveform tomography breast imaging,
Reference 20
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 8b635ce5-8997-4fba-b84a-aad4ebb2ec37 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Medical ultrasound tomography: lessons from exploration geophysics,
Reference 21
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation bf0bdf2d-7cde-4c70-b939-7854408d6349 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Two-dimensional nonlinear inversion of seismic waveforms: Numerical results,
Reference 22
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation c2cfedee-d84a-4f97-91ca-567384130641 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Multiscale seismic waveform inversion,
Reference 23
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation ef6ddacc-b53f-40f7-ab27-da225cbdc4c1 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Wave-equation traveltime inversion,
Reference 24
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation e05d31bd-98e9-407a-94d6-b3a2aa5659b6 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Fresnel zone inversion for lateral heterogeneities in the Earth,
Reference 25
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 0f447fa3-697a-4645-9273-be715aac2207 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Three-dimensional sensitivity kernels for finite-frequency traveltimes: the banana-doughnut paradox,
Reference 26
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 38d25d21-d912-496b-812e-4476f51c9079 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Fr ´echet kernels for finite- frequency traveltimes - I. Theory,
Reference 27
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 037b012c-7994-4bcb-b304-e3a0e104d644 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography The S-velocity structure of the East Asian mantle from inversion of shear and surface waveforms,
Reference 28
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation ccd33169-d8f4-487a-b18e-99bcee443ae6 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Multi-mode surface wave to- mography for the Australian region using a 3-stage approach in- corporating finite-frequency effects,
Reference 29
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 8068eb3d-874e-46b5-a238-aded3f93e8c3 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Two-stage subduction history under north america inferred from multiple-frequency tomography,
Reference 30
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 793653ba-17b0-4213-8bcd-aae2bbfe3735 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Finite-frequency tomography reveals a variety of plumes in the mantle,
Reference 31
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 7636751b-4924-40b2-8ccb-3c96e3d922d5 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Global upper-mantle structure from finite-frequency surface-wave tomography,
Reference 32
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 419fafb4-1a0f-4721-9e2a-907701fa83c1 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography On the linearity of cross-correlation delay times in finite-frequency tomography,
Reference 33
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 667fa6a4-a796-4c9e-8689-57e232db5d91 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Odds-Ratio Thompson Sampling to Control for Time-Varying Effect
Reference 34
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 0eacf290-8a03-42e4-9637-10732a2f05a3 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Validation of first-order diffraction theory for the traveltimes and amplitudes of propagating waves,
Reference 35
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 447fed55-c5c1-4c9b-b457-0a7f78761f1f · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Theoretical background for the inversion of seismic waveforms, including elasticity and attenuation,
Reference 36
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation bbbce06e-ff86-4dbf-88c2-cc1fbd60d55d · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Extending the Choquet theory: Trace convexity
Reference 37
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 525c90a0-fc4a-49ef-bfba-5461342a2ce8 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography The adjoint method in seismol- ogy - I. Theory,
Reference 38
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation d1255b33-73d5-4041-add2-77c85370a586 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography A review of the adjoint-state method for computing the gradient of a functional with geophysical applications,
Reference 39
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation fd783d28-addc-4b2f-87fe-28a9df053b94 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Linearized inversion of seismic reflection data,
Reference 40
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation a40081e6-bc9d-4638-b9ab-ce8c1fd91d18 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Nolet, A Breviary of Seismic Tomography: Imaging the Interior of the Earth and Sun
Reference 41
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation d7f5e43a-3297-49da-9d3f-827b2427e2a3 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Toward a practical ultrasound waveform tomography algorithm for improving breast imaging,
Reference 42
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 551515e3-8b38-4c6c-941c-6c4c027af5c3 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Diffraction effects upon finite-frequency travel times: A simple 2-D example,
Reference 43
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 27b70446-b8e5-488a-8b45-b71f2e871533 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Fast algorithms for Bayesian uncertainty quantification in large-scale linear inverse problems based on low-rank partial hessian approximations,
Reference 44
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8c9b1db7-fcf9-4214-ad55-543a2d34e1f6 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Resolution analysis by random probing,
Reference 45
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 89f027cc-bc7d-4aca-9915-e890c6d62a3d · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography USCT reference data base: conclusions from the first SPIE USCT data challenge and future directions,
Reference 46
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 9d16bd5a-44d8-4493-8767-021a6a58a855 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Multimodal ultrasonic imaging for breast cancer detection,
Reference 47
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 684ace29-3534-4ab8-8b27-0d2a221d698b · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Implementation of an optimal first-order method for strongly convex total variation regularization,
Reference 48
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation b4f34932-b46c-4cc6-80d0-1cc69d3b86e4 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography An improved 3D Ultrasound Computer Tomography system,
Reference 49
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation d2c66e29-a049-4114-98ca-9c6218cb4482 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Optimal experimental design to position transducers in ultrasound breast imaging,
Reference 50
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 225ae455-b8f5-484b-a3be-779a5ffd92b2 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography SeqMobile: A Sequence Based Efficient Android Malware Detection System Using RNN on Mobile Devices
Reference 51
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8fb7f0a6-f5f1-44d0-9331-b5495fe9b61e · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Development of ultrasound tomography for breast imaging: Technical assessment,
Reference 52
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 7a750c66-6926-4ff1-95f2-cd1e8f3eafe2 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Unresolved cited work
Reference 53
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation a0795c83-02c8-4407-95e5-4e8a8d3bf3f4 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography 3- d nonlinear acoustic inverse scattering: Algorithm and quantitative re- sults,
Reference 54
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 1261b1aa-df07-428b-84f5-1a78ede6fc5f · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: https://doi.org/10.1190/1.1443032
Reference 1991
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 23a61fb2-14fe-4032-af24-c9f311d55a72 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: https://onlinelibrary.wiley.com/doi/abs/10
Reference 1999
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 88bc8345-0285-41ac-b882-7b9659b98cb7 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: https://aapm.onlinelibrary.wiley.com/doi/abs/ 10.1118/1.1897463
Reference 2005
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation e3931d20-86cd-4201-88c1-b4a436cdb4d7 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: http://stacks.iop.org/0031-9155/60/i=14/a= 5381
Reference 2015
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation 6de2b5ec-83e0-41bc-918d-5a3e910b4561 · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: http://www.sciencedirect.com/science/article/ pii/S0168900217307593 11
Reference 2016
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
Observation b2a997ec-1eb1-4072-bdbf-59cf94ffc7bf · outbound
3D Wave-Equation-Based Finite-Frequency Tomography for Ultrasound Computed Tomography Available: https://doi.org/10.1117/12.2293063
Reference 2018
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.
No inbound Pith citation observations are available.