References
- Albus , J. and Meystel , A. 2001 . Intelligent systems: architecture, design, control , New York : Wiley .
- Proceedings of the 2008 4th International IEEE Conference ‘Intelligent Systems’ . Volume I, II, 6–8 September 2008, Varna, Bulgaria, 2008. ISBN: 978-1-4244-1739-1