Name: Tina email: [EMAIL PROTECTED] homepage: http://www.tinita.de Preferred user-ID: TINITA i'm planning to contribute a module for checking bank-account- numbers in germany; i've implemented a couple of check-methods already, the rest will follow. i didn't find any module on CPAN that checks german account-numbers, although there is an existing (but commercial) module. i think it would best fit into the Business-namespace, like Business::DE::Konto (any suggestions welcome). regards, tina