Volume 37.1, Issue 73, April 1997, Pages 247-260
M.S. WASSEL; K.A. ELIAN; F.F. ZAKI; ELHAM A. EL-IBIARY
Volume 28.2, Issue 56, January 1993, Pages 128-139
M.M. EL-SHINNAWY; N.A. HUSSEN; M.M. EL-NIMR; A.Y.A. MOHSEN; A.A. ZAGHAWA; M.S. WASSEL; E.A. EL-EBIARY; F.F. ZAKI