H. Drias. Proceedings of the 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Volume 01, Seite 36--39. Washington, DC, USA, IEEE Computer Society, (2011)
O. Hoeber. Proceedings of the 2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Volume 03, Seite 29--32. Washington, DC, USA, IEEE Computer Society, (2008)