a person in the record
Hans Peter Knibbe
Doctoral advisors Cornelis (Kees) Willebrordus Oosterlee and Cornelis Vuik 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