Unresolvable Identifier

arXiv:2604.27397 · detector doi_compliance · cross_source · 2026-05-19 19:16:20.325541+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/978-1-4612-0605-7_9.url:https://doi.org/10.1007/978-1-4612-0605-7_9' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

C. Cao and P. L. Waterman. “Conjugacy Invariants of M¨ obius Groups”. In:Quasiconformal Mappings and Analysis: A Collection of Papers Honoring F.W. Gehring. Ed. by Peter Duren 72 REFERENCES et al. New York, NY: Springer New York, 1998, pp. 109–139.isbn: 978-1-4612-0605-7.doi: 10.1007/978-1-4612-0605-7_9.url:https://doi.org/10.1007/978-1-4612-0605-7_9

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/978-1-4612-0605-7_9.url:https://doi.org/10.1007/978-1-4612-0605-7_9",
  "raw_excerpt": "C. Cao and P. L. Waterman. \u201cConjugacy Invariants of M\u00a8 obius Groups\u201d. In:Quasiconformal Mappings and Analysis: A Collection of Papers Honoring F.W. Gehring. Ed. by Peter Duren 72 REFERENCES et al. New York, NY: Springer New York, 1998, pp. 109\u2013139.isbn: 978-1-4612-0605-7.doi: 10.1007/978-1-4612-0605-7_9.url:https://doi.org/10.1007/978-1-4612-0605-7_9",
  "ref_index": 6,
  "verdict_class": "cross_source"
}