[otrs] Status- and Owner-Change-Emails in German

Hello, i need a little help from you: I wanted to translate the automatic Status- and Owner-Change-Emails, so i translated the lines into german in the Defaults.pm (in Config-Directory). Unfortunately ist didn't work. Now i looked for the strings in the other files of otrs, but i didn't find them anywhere else. Could you please help me? Thanks a lot! Greetings from Lake-of-Constance to all otrs users Stefan