NAME

    Catmandu::Identifier - Namespace for handling/fixing identifier, e.g.
    ISBN, ISSN

MODULES

      * Catmandu::Fix::isbn10

      * Catmandu::Fix::isbn13

      * Catmandu::Fix::isbn_is_valid

      * Catmandu::Fix::issn

AUTHOR

    Vitali Peil, <vitali.peil at uni-bielefeld.de>

LICENSE

    This library is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.

SEE ALSO

    Catmandu::Fix