Volume 42, Issue 2, April 2016, Pages 435-446
R. Abazari; A. Niknam
Volume 39, Issue 3, July 2013, Pages 559-568
A. R. Khoddami; H. R. Ebrahimi Vishki
Volume 35, No. 2, November 2009, Pages 179-190
E. Mphako-Banda