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Ptacek, Karla; Helen Varley Jamieson (2004-11-30). "Writing 4 Cyberformance". trAce Online Writing Centre. Archived from the original on 2008-12-05. Retrieved 2008-09-23.
Ptacek, Karla (2003-09-01). "Avatar Body Collision: enactments in distributed performance practices". Digital Creativity. 14 (3): 180–192. doi:10.1076/digc.14.3.180.27873. S2CID38342687.
Ptacek, Karla; Helen Varley Jamieson (2004-11-30). "Writing 4 Cyberformance". trAce Online Writing Centre. Archived from the original on 2008-12-05. Retrieved 2008-09-23.