G. Biegel, и V. Cahill. Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04), стр. 361--. Washington, DC, USA, IEEE Computer Society, (2004)
E. Guy. Proceedings of ATIT 2004, The First International Workshop on Activity Theory Based Practical Methods for IT Design, стр. 33-48. Copenhagen, Denmark, Published as DAIMI report, University of Aarhus, (2004)
C. Goldman, Y. Mor, и J. Rosenschein. Proceedings of the First International Conference on Practical Applications of Intelligent Agents and Multi-Agents Technology (PAAM96), стр. 837--842. London, UK, (1996)