Volume 20, Issue 3, October 2007, Pages 293-300
S. J. Hashemi; M. K. Ghasem Alaskari
Volume 18, Issue 3, August 2005, Pages 219-228
A. A. Golafshani; M.S. Seif; M. R. Tabeshpour
Volume 16, Issue 1, February 2003, Pages 41-46
Z. Wu; M. H. Neshati