Paul Grosso. <cite><a href='http://www.oasis-open.org/html/a401.htm'>Entity Management: OASIS Technical Resolution 9401:1997 (Amendment 2 to TR 9401)</cite></a> 10 september 1007. Entity Management Subcommittee, SGML Open. URL: <a href='http://www.oasis-open.org/html/a401.htm'>http://www.oasis-open.org/html/a401.htm</a>