@InProceedings{Torre08PartImpSemForGoalChange,
  Title                    = {Conviviality Masks in Role-Based Institutions Multi-Agent Teleconferencing in Virtual Worlds},
  Author                   = {Patrice caire, Serena Villata , Leendert van der Torre, Guido Boella},
  Booktitle                = {Proceedings of AAMAS 2008)},
  Year                     = {2008}
}