a person in the record
Wolter G. M. Groenevelt
Doctoral advisors on Wikidata: Hendrik Gerrit Meijer and Hendrik Tjerk Koelink.
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-20261008T172418Z