@article {2718,
	title = {Ecology, biology, field experimentation and environmental impact. In: C. Lomer \&amp; C. Prior (eds).},
	journal = {Biological Control of Locusts and Grasshoppers, CAB International, Wallingford, UK, pp. 267-278},
	year = {1992},
	author = {Johnson, D.L.}
}
