1. National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, Magurele, Ilfov, Romania
2. Department of Mathematical Modeling in Life Sciences, “Gheorghe Mihoc-Caius Iacob” Institute of Mathematical Statistics and Applied Mathematics of Romanian Academy, Septembrie 13, 050911, Bucharest, Romania, dghpopescu@gmail.com
3. Department of Computer Sciences, IT CORE SRL, Garoafei 2, Bucharest, Romania