@article {58,
	title = {Parasitoids protect christmas stars from whiteflies},
	journal = {Deutscher Gartenbau},
	volume = {43},
	number = {27},
	year = {1989},
	pages = {1671-1673},
	author = {Albert, R. and Sautter, H.}
}
@article {60,
	title = {Successful biological control in ornamental plants - I. Poinsettias ( Euphorbia pulcherrima Willd. ex Klotzsch)},
	journal = {Gesunde Pflanzen},
	volume = {41},
	number = {11},
	year = {1989},
	pages = {389-395},
	author = {Albert, R. and Schneller, H.}
}
@article {61,
	title = {Biological control in ornamental plants. I. Poinsettias ( Euphorbia pulcherrima Willd. ex Klotzsch},
	journal = {Mededelingen van de Faculteit Landbouwwetenschappen, Rijksuniversiteit Gent},
	volume = {54},
	number = {3a},
	year = {1989},
	pages = {873-882},
	author = {Albert, R. and Schneller, H.}
}
