V. Majuntke, G. Schiele, K. Spohrer, M. Handte, и C. Becker. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, стр. 178--184. Los Alamitos, CA, IEEE Computer Society CPS, (2010)
Z. Cherif, A. Nait-Ali, J. Motsch, и M. Krebs. Proceedings of the19th IEEE Instrumentation and Measurement Technology Conference (IMTC 2002), Anchorage, AK, USA, 2, стр. 1029--1033. (2002)
B. Liu, H. Chen, и W. He. ICTAI '05: Proceedings of the 17th IEEE International Conference on Tools with Artificial Intelligence, Hong Kong, China, стр. 254-259. (2005)
F. Nothdurft, G. Bertrand, T. Heinroth, и W. Minker. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, стр. 90-95. Los Alamitos, CA, IEEE Computer Society CPS, (2010)