_:vb50818561 . . _:vb50818561 . _:vb50818559 . _:vb50818558 . _:vb50818558 "Tim Bray" . _:vb50818558 . _:vb50818559 . "Namespaces in XML" . _:vb50818560 "Andrew Layman" . _:vb50818559 "Dave Hollander" . . . . _:vb50818561 . _:vb50818560 . _:vb50818560 . "1999-01-14" . .