Paper Citation Record · LEDGER

Positioning services of a travel agency in social networks

As of 17 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1901.07072.

A citation records a reference. It does not transfer a finding from one paper to another.

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 2 of 2 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-17T06:30:58.91139+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-02T07:17:10.837602Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

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 09c820d5-6ce8-43d5-8bef-9ccd3e584b34 · inbound

Reference 5

Resolution: unresolved; no resolver link, observed 2026-07-14T10:05:05.475579Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 7dd8e8e0-5e5b-447b-a78b-b584c01362a3 · inbound

Reference 6

Resolution: unresolved; no resolver link, observed 2026-08-02T07:17:10.837602Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.