a person in the record
Pier Groen
Dutch university teacher1912 to 1995
Wikidata names Gerardus J. Sizoo and Hans Kramers as doctoral advisors and lists 1 doctoral student. Linked to Wikidata, Mathematics Genealogy Project, and 3 other registers.
How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Advisors on Wikidata2
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
- stated by Wikidata
Students on Wikidata1
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1925
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 WikidataGerardus J. Sizoostated by WikidataHans Kramers
- 2 steps up
stated by WikidataPaul Ehrenfeststated by WikidataWander Johannes de Haas
- 3 steps up
stated by WikidataHeike Kamerlingh Onnesstated by WikidataLudwig Boltzmann
- 4 steps up
stated by WikidataJosef Stefanstated by WikidataRudolf Adriaan Mees
Below them, within 3 steps, the record reaches 1 person: 1 stated by Wikidata.
Education and career6
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- 1951 to 1952
- 1952 to 1964
- 1964 to 1970worked
- 1964 to 1979
- undatedstudied
- undated