1981/04-1981/04

https://w3id.org/zericatalog/date/1981-04-1981-04 an entity of type: E52_Time-Span

1981-04-01-01T00:00:00Z 
1981-04-01-01T00:00:00Z 
1981/04-1981/04 

data from the linked data cloud