a person in the record
Jacob van de Laar
Doctoral advisors on Wikidata: Jan Bergmans, Marc Moonen, and Piet C.W. Sommen.
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