Volume 32, Issue 2, April 2015, Pages 909-926
M.N. El Awady; M.F. Abd El-Salam; A.E. Farrag; K.M. Aboelghait
Volume 27, Issue 2, April 2010, Pages 521-529
A.A. Radwan; M.N. El Awady; M.M. Hegazy; S.A. Mohamed