1. Department of Mathematical Modeling in Life Sciences, “Gh.Mihoc-Caius Iacob” Institute of Mathematical Statistics and Applied Mathematics of RomanianAcademy, 13 Septembrie street, 050911, Bucharest, Romania, dghpopescu@gmail.com
2. University of Bucharest, Bulevardul Regina Elisabeta Nr. 4-12, București 030018, Romania
3. Department of Computer Sciences, IT CORE SRL, 10, Garoafei Street, 051235, Bucharest, Romania
4. National Institute for Laser, Plasma and Radiation Physics, Atomistilor street, 409, Magurele, Ilfov, Romania