a person in the record
Mathijs M. de Weerdt
Doctoral advisors Cees Witteveen, Henk Sips, and John-Jules Ch Meyer on Wikidata.
Advisors on Wikidata
Wikidata's own statements of who supervised whom, kept apart from the record's theses and never counted with them.
Wikidata run graph-wikidata-20261015T220004Z