Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 16 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 3 inbound Pith citation observations for arXiv:1104.1205.
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
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-15T06:32:42.880941+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-12T13:49:28.299696Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-08-11T23:13:51.405300Z
0 of 0 outbound references displayed
External citation measurements
No source-named external measurement is stored.
No outbound reference observations are available for this paper version.
Observation ec750a95-54e7-4f8f-b21f-5bc31a7f2f74 · inbound
Regular black holes inspired by quasi-topological gravity Birkhoff's Theorem in Higher Derivative Theories of Gravity
Reference 44
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 5513f812-1980-4926-9704-c16c51730e6b · inbound
Regular black holes from thin-shell collapse Birkhoff's Theorem in Higher Derivative Theories of Gravity
Reference 97
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation d3788b35-9bcf-4db7-8ca3-6834d9003087 · inbound
Dynamical Formation of Regular Black Holes Birkhoff's Theorem in Higher Derivative Theories of Gravity
Reference 70
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-15T06:32:42.880941+00:00.