1. Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, IMEYMAT, Campus Universitario Río San Pedro s/n., 11510Puerto Real, Cádiz, Spain
2. Computation-based Science and Technology Research Center, The Cyprus Institute, 20 Constantinou Kavafi Str., 2121Nicosia, Cyprus
3. Institute of Applied and Computational Mathematics, Foundation for Research and Technology Hellas, GR-70013Heraklion, Crete, Greece
4. Department of Mathematics and Applied Mathematics, University of Crete, GR-71409Heraklion, Crete, Greece