Provided by: libcatmandu-identifier-perl_0.15-2_all bug

NAME
       Catmandu::Fix::Condition::is_valid_issn - condition on validity of issn numbers


SYNOPSIS
          if is_valid_issn(issn_field)
            ...
          else
            ...
          end


SEE ALSO
       Catmandu::Fix

perl v5.36.0                                2023-02-0Catmandu::Fix::Condition::is_valid_issn(3pm)