http://www.linkedmodel.org/schema/vaem#releaseDate
Property 'vaem:release date'

The property "vaem:releaseDate" is intended for general use as the name implies. The range of the property is set as "vaem:dateUnion" so as to allow a value to have a number of forms from a year only to a full timestamp

owl:DatatypeProperty

http://www.linkedmodel.org/schema/vaem

http://www.linkedmodel.org/2.0/schema/vaem

release date

vaem:date