a person in the record
Cornelis Johannes Maria van den Berg
Doctoral advisors on Wikidata: Adrianus Jurianus Hermans and Karel Hendrik Ephraïm.
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