@conference {65674,
	title = {On the theory of pulse propagation and wave mixing process at intense   excitation},
	booktitle = {IInd workshop on plasma and laser technology, volume2, edited by Ph. Mertens, B. Schweer- KFA Germany},
	year = {1990},
	month = {1990},
	address = {Cairo- Egypt},
	author = {ElKolaly, Hisham A and S S Montaser and B Honerlage}
}
