«["The World Generator / The Engine of Desire", 1996-98 : Bill Seaman with programmer Gideon May]». — Portable sacred grounds : telepresence world. — Tokyo : NTT InterCommunication Center, [1998]. — [Date of reference : May 12, 2005]. — Access : {{http://www.ntticc.or.jp/Archive/1998/PORTABLE_SACRED_GROUNDS/Works/the_world.html}}.