Volume 22, Issue 3, December 2011, Pages 46-55
A. Teymoorikhani; S. Akbari Daryan; F. Keshavarz
Volume 15, Issue 4, March 2005, Pages 34-47
A. Nasseri Tahery
Volume 15, Issue 1, June 2004, Pages 165-177
By: M. Alhavash; Translated and summarized: H. Alinaghian