Volume 45.2, Issue 90, July 2001, Pages 410-433
M.F. El-Sayed
Volume 44.1, Issue 87, October 2000, Pages 310-330
M.F. El-Sayed
Volume 43.2, Issue 86, July 2000, Pages 305-326
M.F. El-Sayed
Volume 42.2, Issue 84, January 2000, Pages 328-348
M.F. El-Sayed