1. Institute of Applied and Computational Mathematics, Foundation for Research and Technology Hellas, IACM/FORTH, GR-71110 Heraklion, Greece
2. Department of Mathematics and Applied Mathematics, University of Crete, GR-71409 Heraklion, Greece
3. Computation-Based Science and Technology Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
4. School of Applied Mathematical and Physical Sciences, National Technical University of Athens, GR-15772 Athens, Greece
5. Theoretical & Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, GR-11635 Athens, Greece