Authors
Veronica Cornaciu
Doctoral School of Mathematics, University of Bucharest Academiei nr.14,, Bucharest, Romania
Titu Maiorescu University Faculty of Computer Science Vacaresti nr. 187,, Bucharest, Romania
Ileana Ioana
PhD Student, Doctoral School of Mathematics, University of Bucharest, Academiei nr. 14,, Bucharest, Romania