Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 17 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 5 inbound Pith citation observations for arXiv:astro-ph/9812021.
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 2026-08-17T06:30:58.91139+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-12T17:05:42.951042Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-06-30T20:55:04.532668Z
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 13715524-76db-4fc6-9da0-ba80897ee3a8 · inbound
Picolensing as a Probe of Primordial Black Hole Dark Matter Gravitational Lensing in Astronomy
Reference 87
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8b3a3c4f-7e56-4f6b-8bf0-e53e297675bc · inbound
A class of charged-Taub-NUT-scalar metrics via Harison and Ehlers Transformations Gravitational Lensing in Astronomy
Reference 76
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 420fe60a-23d2-467a-8960-356d50361cdd · inbound
Astrophysical environment around a black hole in the braneworld and its optical signatures Gravitational Lensing in Astronomy
Reference 66
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.
Observation eb67b79f-45fc-4cd5-9de6-3f50b3f20215 · inbound
Hawking Radiation in $f(\mathcal{R})$ Gravity: Survival of lighter black holes Gravitational Lensing in Astronomy
Reference 5
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 57449d3e-e5de-4352-8bf4-6ccd6279a29f · inbound
Gravitational Lensing in a Kasner Background: Distinguishing Wormholes and Black Holes Gravitational Lensing in Astronomy
Reference 3
Source-reported events for the cited work
Unavailable: canonical work link unavailable.