(Q59526877)
Statements
1920
6 references
7 December 2018
Douwe Holwerda
9 October 2017
Douwe Holwerda
9 October 2017
2011
6 references
7 December 2018
Douwe Holwerda
9 October 2017
Douwe Holwerda
9 October 2017
Identifiers
1 reference
Holwerda, Douwe, 1920-2011