Authors
Larisa Elena Biriş
West University of Timişoara, Department of Mathematics, Timişoara, Romania
Traian Ceauşu
West University of Timişoara, Department of Mathematics, Timişoara, Romania
Ioan-Lucian Popa
“1 Decembrie 1918” University of Alba Iulia Department of Computing, Mathematics and Electronics, Transilvania University of Braşov, Faculty of Mathematics and Computer Science,, Alba Iulia
Nicolae Seimeanu
West University of Timişoara, Department of Mathematics, Timişoara, Romania
