Authors
Larisa Elena Biriş
Department of Mathematics, West University of Timişoara, Timişoara, Romania
Claudia Luminiţa Mihiţ
Department of Mathematics, West University of Timişoara, Timişoara, Romania
Traian Ceauşu
Department of Mathematics, West University of Timişoara, Timişoara, Romania
Ioan-Lucian Popa
Department of Exact Sciences and Engineering, University ”1 Decembrie” 1918 of Alba Iulia, Alba Iulia, Romania
