Digital Media and the Primacy of New Content. - Patrick Purcell (IEEE Multim., 1997)

Community-based interactive systems. - Kostas Stathis; Patrick Purcell (Telematics Informatics, 2001)

Intelligence and interaction in community-based systems. - Kostas Stathis; Patrick Purcell (Interact. Comput., 2002)

Intelligence and interaction in community-based systems (Part 2). - Kostas Stathis; Patrick Purcell (Interact. Comput., 2003)