a person in the record
Marcel Erik van Kooten Niekerk
Doctoral advisors on Wikidata: Han Hoogeveen, Jan van Leeuwen, and Marjan van den Akker.
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-20261014T220004Z