a person in the record
Otton Czeczott
Doctoral advisors on Wikidata: Jan Baliński, Jan Mierzejewski, and Petr Dyukov.
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