a person in the record
Bart Bok
Dutch-American astronomer1906 to 1983
Wikidata names Pieter Johannes van Rhijn as doctoral advisor and lists 8 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 6 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 Wikidata1
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
Students on Wikidata8
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1907
- stated by Wikidataborn 1912
- stated by Wikidataborn 1918
- stated by Wikidataborn 1924
- stated by Wikidataborn 1926
- stated by Wikidataborn 1928
- stated by Wikidataborn 1930
- stated by Wikidata
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 WikidataPieter Johannes van Rhijn
- 2 steps up
stated by WikidataJacobus Kapteyn
- 3 steps up
stated by WikidataCornelius Hubertus Carolus Grinwis
- 4 steps up
stated by WikidataRichard van Rees
Below them, within 3 steps, the record reaches 16 people: 16 stated by Wikidata.
Education and career5
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- undatedstudied
- undatedstudied
- undatedworked
- undated
- undatedworked