«Seeing double : emulation in theory and practice». — Variable media network = Réseau des médias variables. — New York : Solomon R. Guggenheim Museum ; Montréal : Daniel Langlois Foundation for Art, Science, and Technology. — [Date of reference : March 16, 2004]. — Access : {{http://www.variablemedia.net/e/seeingdouble/index.html}}.