An agent development framework based on social positions. - George Lekeas; Kostas Stathis (SMC (6), 2004)

Competence Checking for the Global E-Service Society Using Games. - Kostas Stathis; George Lekeas; Christos Kloukinas (ESAW, 2006)

Producing Enactable Protocols in Artificial Agent Societies. - George Lekeas; Christos Kloukinas; Kostas Stathis (PRIMA, 2011)

Regulating competence-based access to agent societies. - George Lekeas (2011)