Volume 63, Issue 152, January 2017, Pages 173-182
BADR, M.A.; EBTIHAL, IBRAHIM; DOHREIG, R.M.A.; HUSSEIN, M.S.; HASSAN, H.M.
Volume 33.2, Issue 66, July 1995, Pages 127-135
HASSAN, H.M.; NASSER, M.H.; EMARA S.A.