a person in the record
Izak Willem van Spiegel
Doctoral advisor on Wikidata: Johan Gerretsen; 2 doctoral students 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.
Students on Wikidata2
Wikidata's own statements of who supervised whom, kept apart from the record's theses and never counted with them.
- Frank Twiltborn 1942
- Cornelis Hoede
Wikidata run graph-wikidata-20261008T172418Z