Volume 18, Issue 1, March and April 2007, Pages 34-42
Nezamaddin Daneshvar; Alireza Khataee; Mohammad Hossien Rasoulifard; Mirsaeed seyed Dorraji
Volume 17, Issue 1, March and April 2006, Pages 22-29
Nader Djafarzadeh; Nezammadin Daneshvar