DOI Data Dictionary, 2015-03-23
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All Intro
Circa
A message term for doi:kernelMetadata.
The Relator between a time and another to which it approximates.
Relationships      
Parents IsTemporallyRelatedTo The Relator between a time and another to which it has a proximate relationship.
Belongs to AVS doiavs:timeProximity Allowed values for the proximity of a declared time to the actual time referenced. A null value indicates that the date is accurate.
© 2015 International DOI Foundation