Volume 7, Issue 4, October 2009, Pages 241-246
Roohallah Barzehkar; Abdolreza Salehi; Frouzandeh Mahjoubi
Volume 3, Issue 2, April 2005, Pages 104-108
Arash Javanmard; Nader Asadzadeh; Mohammad Hossein Banabazi; Javad Tavakolian