Affiliation: | 1. Department of Information Engineering and Mathematics, University of Siena, Via Roma 56, I-53100, Siena, Italy;2. D.I.C.A.T.A.M. (Section of Mathematics), University of Brescia, Via Branze 53, I-25123, Brescia, Italy;3. Faculty of Mathematics and Computer Science, University of Warmia and Mazury, Słoneczna 54, Olsztyn, Poland;1. DGA MI, France;2. Université libre de Bruxelles, Département d''informatique, Belgium;3. University of Birmingham, School of Computer Science, United Kingdom;1. Department of Mathematical and Physical Sciences, University of Chester, Thornton Science Park, Pool Ln, Chester CH2 4NU, England, United Kingdom;2. Tarsus University, Faculty of Engineering, Department of Natural and Mathematical Sciences, Mersin, Turkey;3. Tarsus University, Faculty of Engineering, Department of Computer Engineering, Mersin, Turkey |