@conference {24207,
	title = {Host-parasite allelophathic potential in arid desert plants. In: F. A. Macias, J. C. G. Galindo, J. M. G. Molinillo and H. G. Culter (eds.); Recent Advances in Allelapathy.},
	booktitle = {A Science for the Future. First World Congress on Allelopathy},
	year = {1999},
	month = { 16-20 September},
	author = {A.K. Hegazy and G.M. Fahmy}
}
