(Q2179964)
Statements
2 references
1 reference
1 reference
6 March 1902Gregorian
4 references
Lamoraal Ulbo de Sitter
9 October 2017
Lamoraal Ulbo de Sitter
12 May 1980
3 references
Lamoraal Ulbo de Sitter
9 October 2017
Lamoraal Ulbo de Sitter
17 July 1948
1 January 1955
1 reference
1 reference
7 August 1958
19 February 1968
1 reference
Identifiers
1 reference
Sitelinks
Wikipedia(5 entries)
- arzwiki اولبو دى سيتر
- dewiki Ulbo de Sitter
- enwiki Ulbo de Sitter
- frwiki Ulbo de Sitter
- nlwiki Ulbo de Sitter (geoloog)