Authors
M. J. Nikmehr
Faculty of Mathematics, K.N. Toosi University of Technology, Tehran, Iran
R. Nikandish
Department of Mathematics, Jundi-Shapur University of Technology P.O. BOX 64615-334, Dezful, Iran
A. Yassine
Faculty of Mathematics, K.N. Toosi University of Technology, Tehran, Iran
K. Hila
Department of Mathematical Engineering, Polytechnic University of Tirana, Tirana, Albania
S. Hoskova-Mayerova
Department of Mathematics and Physics, Univeristy of Defence, Czech Republic