a person in the record
Jan Kuijpers
Dutch astronomerborn 1946
Supervised 1 doctoral student at Radboud University Nijmegen in 2009; Wikidata names Henk van Bueren and Max Kuperus as doctoral advisors and lists 3 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 2 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlex
Students1
- cited by a thesis record2009 · Radboud University Nijmegen · doctoral
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
Students on Wikidata3
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1953
- stated by Wikidataborn 1953
- stated by Wikidataborn 1957
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataHenk van Buerenstated by WikidataMax Kuperus
- 2 steps up
stated by WikidataCornelis de Jagerstated by WikidataHendrik Casimir
- 3 steps up
stated by WikidataMarcel Minnaertstated by WikidataPaul Ehrenfest
- 4 steps up
stated by WikidataLeonard Ornsteinstated by WikidataLudwig Boltzmann
Below them, within 3 steps, the record reaches 5 people: 1 cited by thesis records, 4 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- until 1975studied
- from 1991worked
- undatedworked