@article {584,
	title = {The natural enemies of the chaff scale, Parlatoria pergandei Comstock, in Israel},
	journal = {Entomophaga},
	volume = {12},
	number = {2},
	year = {1967},
	month = {16-Mar-67},
	pages = {97-109},
	author = {Gerson, U.}
}
@article {585,
	title = {The comparative biologies of two hymenopterous parasites of the chaff scale, Parlatoria pergandei },
	journal = {Entomophaga},
	volume = {13},
	number = {2},
	year = {1968},
	month = {4-Nov-68},
	pages = {163-173},
	author = {Gerson, U.}
}
@article {583,
	title = { Parlatoria cinerea , a pest of citrus in Israel},
	journal = {FAO Plant Protection Bulletin},
	volume = {12},
	number = {4},
	year = {1964},
	pages = {82-85},
	author = {Gerson, U.}
}
@article {120,
	title = {Some interactions of two hymenopterous parasites of the chaff scale},
	journal = {Researches on Population Ecology},
	volume = {10},
	number = {2},
	year = {1968},
	pages = {171-176},
	author = {Avidov, Z. and Gerson, U.}
}
