Unresolvable Identifier
critical
doi_compliance
unresolvable_identifier
Identifier '10.1007/bf00682108.url:http://dx.doi.org/10.1007/bf00682108' 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
R. Di Leo et al. “Niboium-titanium nitride thin films for superconducting rf accelerator cavities”. In: Journal of Low Temperature Physics78.1–2 (Jan. 1990), pp. 41–50.issn: 1573-7357.doi: 10.1007/bf00682108.url:http://dx.doi.org/10.1007/BF00682108
Evidence payload
{
"arxiv_id": null,
"checked_sources": [
"crossref_by_doi",
"openalex_by_doi",
"doi_org_head"
],
"doi": "10.1007/bf00682108.url:http://dx.doi.org/10.1007/bf00682108",
"raw_excerpt": "R. Di Leo et al. \u201cNiboium-titanium nitride thin films for superconducting rf accelerator cavities\u201d. In: Journal of Low Temperature Physics78.1\u20132 (Jan. 1990), pp. 41\u201350.issn: 1573-7357.doi: 10.1007/bf00682108.url:http://dx.doi.org/10.1007/BF00682108",
"ref_index": 4,
"verdict_class": "cross_source"
}