Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
As of 9 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1907.05402.
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 2026-08-09T06:31:02.800959+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-06T19:25:50.249736Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-08-06T19:25:50.395259Z
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 b5750da8-3f8d-41e2-aa4b-af40ce3a5fd1 · inbound
The setting sun diagram with complex external momenta Scattering amplitudes and contour deformations
Reference 29
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-09T06:31:02.800959+00:00.
Observation bdd34e8d-b333-460b-afcb-e44216f1f830 · inbound
A beginner's guide to functional methods in particle physics Scattering amplitudes and contour deformations
Reference 120
Source-reported events for the cited work
Unavailable: canonical work link unavailable.