1. Biological Systems Engineering Department, Washington State University, Pullman, Washington 99164, United States
2. Programa de Ingeniería de Sistemas, Universidad de Cartagena, Avenida del Consulado No. 48-152, Cartagena 130015, Colombia
3. Department of Computer Science and Systems Technology, University of Pannonia, Egyetem u. 10, 8200 Veszprém, Hungary
4. Széchenyi István University, Egyetem tér 1, 9026 Győr, Hungary