Unresolvable Identifier

arXiv:2605.04884 · detector doi_compliance · cross_source · 2026-05-19 14:04:33.019903+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1093/imanum/11.1.83' 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

Garratt, T. J., Moore, G., and Spence, A., “Two methods for the numerical detection of Hopf bifurcations,”IMA Journal of Numerical Analysis, Vol. 11, No. 1, 1991, pp. 83–108. doi:10.1093/imanum/11.1.83

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1093/imanum/11.1.83",
  "raw_excerpt": "Garratt, T. J., Moore, G., and Spence, A., \u201cTwo methods for the numerical detection of Hopf bifurcations,\u201dIMA Journal of Numerical Analysis, Vol. 11, No. 1, 1991, pp. 83\u2013108. doi:10.1093/imanum/11.1.83",
  "ref_index": 60,
  "verdict_class": "cross_source"
}