. . _:vb50819425 . "Compound Document Use Cases and Requirements Version 2.0" . _:vb50819424 "Petri Vuorimaa" . _:vb50819424 . "2005-12-19" . _:vb50819423 . _:vb50819423 "Steve Speicher" . _:vb50819425 . _:vb50819423 . . _:vb50819424 . . _:vb50819425 .