Volume 33, Issue 4, October 2016, Pages 1421-1434
R. M. El-Nady; H. M. Mostafa; M. A. Awad; M. Y. El-Ansary
Volume 31, Issue 4, October 2014, Pages 1243-1258
O. A Fouda; M. A. Awad; Sh. F. Abd Elhamed