Affiliation: | Department of Automatic Control and Computer Science, Silesian Technical University, 44-100 Gliwice, Pstrowskiego 16, Poland;Institut für Wirtschaftswissenschaften, RWTH Aachen, Templergraben 64, 5100 Aachen, West Germany;Department of Instrument and Control Engineering, College of Engineering, Hosei University, 3-7-2 Kaijno-cho, Koganei-city, Tokyo 184, Japan |