Volume 31, Issue 3, July 2014, Pages 1223-1242
M.S. El-Shal; M.K. Abd El-Wahab; M.A. Tawfik; K A. Metwally
Volume 31, Issue 1, January 2014, Pages 133-154
M.S. El-Shal; A.S. El-Ashry; A.M. El-Shal; W.B. Fakhrany