 The appearance in "The Life and Times of Scrooge McDuck" was the only use of the character by Don Rosa.The story 'Il matrimonio di Zio Paperone' ("Uncle Scrooge's Wedding"), created by Massimo DeVita (art) and Elisa Penna (story) tells another tale about the origins of Rockerduck's wealth and his rivalry with Scrooge.The story is told by Scrooge's secretary, Ms. Quackfaster, to Scrooge's nephews Donald and Huey, Dewey and Louie.