Paper Citation Record · LEDGER

Spectral Classification of Quasars in the Sloan Digital Sky Survey: Eigenspectra; Redshift and Luminosity Effects

As of 21 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:astro-ph/0408578.

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

pith.paper-citation-record.v1
astro-ph/0408578 v1

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 2026-08-21T06:32:19.484+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-02T01:00:27.135559Z

measured 0 of 1 external citation measurements

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

Source: cited_works

Reference resolution

0 of 0 outbound references displayed

verified exact0
verified fuzzy0
unresolved0
parse uncertain0
malformed identifier0
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

No outbound reference observations are available for this paper version.

Pith citing papers

Observation 98e5badd-6152-4cb7-a1d2-68fe96f9d217 · inbound

Fuelling the central region of galaxies with misaligned gas accretion cites this paper.

Fuelling the central region of galaxies with misaligned gas accretion Spectral Classification of Quasars in the Sloan Digital Sky Survey: Eigenspectra; Redshift and Luminosity Effects

Reference 39

Resolution: unresolved; no resolver link, observed 2026-08-02T01:00:27.135559Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation bc4b553a-4ccc-4bc4-b62f-9d2c966c4f79 · inbound

Too many quiescent late-type galaxies or a matter of misclassification? cites this paper.

Too many quiescent late-type galaxies or a matter of misclassification? Spectral Classification of Quasars in the Sloan Digital Sky Survey: Eigenspectra; Redshift and Luminosity Effects

Reference 39

Resolution: unresolved; no resolver link, observed 2026-07-31T08:31:36.826369Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.