Volume 42.1, Issue 83, October 1999, Pages 337-352
S.A. Atallah; A.H. Abdel-Gawad; Samira A. Emara
Volume 39.2, Issue 78, July 1998, Pages 175-183
S.A. Atallah; O.A. Abd-Alla
Volume 39.1, Issue 77, April 1998, Pages 121-132
S.A. Atallah