Optional

https://w3id.org/jp-textbook/durationType/Optional

Details

Name: Optional; オプション
Type: Duration type

Referred resources

Referred to as 'Duration type' from:: (1); <1>; <1>; <1>; <1>; <1>; <1>; (2); (1); (2); (2); (3); (3); (6); (6); (1); (1); (1); (2); (2); (1); (1); (2); (1); (2); (2); (1); (1); (2); (2); (1); (1); (1); (2); (2); (1); (2); (2); (1); (1); (2); (2); (1); (1); (1); (2); (3); (3); (1); (1)