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-=head1 SYNOPSIS
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-This class has wrapper methodes to get the shortcuts
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-=head1 METHODS
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-=head2 get_abbreviation
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- $class->get_abbreviation($classification_id);
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-get the one/two character shortcut of the parts classification
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-=head2 get_separate_abbreviation
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- $class->get_separate_abbreviation($classification_id);
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-get the one/two character shortcut of the parts classification if it is a separate article
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-=head1 AUTHOR
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-Martin Helmling E<lt>martin.helmling@opendynamic.deE<gt>
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