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
A message term for doi:kernelMetadata.
Allowed values for the proximity of a declared time to the actual time referenced. A null value indicates that the date is accurate.
AVS Members After A time which is after the time stated.
  Before A time which is before the time stated.
  Circa A time which is approximately accurate.
  NotAfter A time which is the same as or before the time stated.
  NotBefore A time which is the same as or after the time stated.
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