1970-1998
https://w3id.org/zericatalog/date/1970-1998 an entity of type: E52_Time-Span
1998-01-01T00:00:00Z
1970-01-01T00:00:00Z
1970-1998
1970-1998
1970-1998
1970/ ca.-1998/ ante
1970/ ca.-1998/ ante