Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 12 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1603.02504.
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 2026-08-12T06:34:41.77262+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-11T22:34:04.164060Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-08-06T17:15:46.178211Z
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 2aacb3db-e7d3-4619-96fb-c53df4e6095e · inbound
Halin's grid theorem for digraphs The Erdos-Posa Property for Directed Graphs
Reference 1
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 48a3051a-32aa-4b57-8321-0e603daecf6a · inbound
Unavoidable butterfly minors in digraphs of large cycle rank The Erdos-Posa Property for Directed Graphs
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.