Pages 1-6
S. Abbasbandy, E. Shivanian
Pages 7-20
Mohammad Hossein Yaghmaee Moghaddam, Hamid Reza Hassanzadeh
Pages 21-25
Ali A. Abbasi, M.T. Ahmadian
Pages 27-39
Hua Hou, Gen- xuan
Pages 41-46
Ali Abouei Mehrizi, Siamak Najarian, Majid Moini, Pedram Pahlavan, Javad Dargahi
Pages 47-55
M. Amiri-Aref, N. Javadian, R. Tavakkoli-Moghaddam, M. B. Aryanezhad
Pages 57-65
M. Khakbaz Baboli, M. J. Kermani
