This is a compound value type that captures the frequency of a periodical's publication either as a frequency (e.g. "daily," "weekly," etc.) or as a number of issues per year (for periodicals published irregularly or on a non-periodic schedule). ...
more
This is a compound value type that captures the frequency of a periodical's publication either as a frequency (e.g. "daily," "weekly," etc.) or as a number of issues per year (for periodicals published irregularly or on a non-periodic schedule). By including a date range, the type also allows changes in a periodical's frequency to be tracked over time.
less
