1967-1968 en 1973.

http://lod.ehri-project-test.eu/units/nl-002891-nl_saa_179410-nl_saa_179573-nl_saa_179580-nl_saa_179585 an entity of type: Record

1967-1968 en 1973. 
1967-1968 en 1973. 

data from the linked data cloud