W. A. de Graaf
type: Ontology
creation date: 2026-08-01T07:28:52+00:00
imports: http://semantic-mediawiki.org/swivt/1.0

W. A. de Graaf
type: Subject
type: Category:Symbolic Algebraist
page: http://172.234.217.245/w/index.php/W._A._de_Graaf
wiki namespace: 0
wiki page content language: en
coauthored with: A. S. Detinko
coauthored with: D. L. Flannery
wiki page modification date: 2025-07-10T18:55:18Z
modification date#aux: 2460867.2884028
wiki page sort key: W. A. de Graaf

http://example.org/w/index.php/Special:URIResolver/W._A._de_Graaf-23_ERRb01acf065e9e1590bff61ab18766286a
type: Subject
master page: W. A. de Graaf
wiki namespace: 0
has improper value for: Property:Has Wikidata item ID
processing error message: [2,"smw-datavalue-wikipage-property-invalid-title","Has Wikidata item ID","{{{authorQID}}}"]
wiki page sort key: W. A. de Graaf# ERRb01acf065e9e1590bff61ab18766286a