@article {1289,
	title = {Progress towards a biological control programme for glasshouse whitefly ( Trialeurodes vaporariorum ) on tomatoes},
	journal = {Annals of Applied Biology},
	volume = {83},
	number = {3},
	year = {1976},
	pages = {349-363},
	author = {Parr, W.J. and Gould, H.J. and Jessop, N.H.}
}
@article {793,
	title = {Studies on the dispersal of the whitefly parasite Encarsia formosa },
	journal = {Bulletin. Section Regionale Ouest Palaearctique, Organisation Internationale de Lutte Biologique.},
	volume = {4},
	year = {1976},
	pages = {115-120},
	author = {Hussey, N.W. and Parr, W.J. and Stacey, D.L.}
}
