@inbook {53,
	title = {European insect biocontrol agents released in Europe},
	booktitle = {Review of invertebrate biological control agents introduced into Europe},
	year = {2016},
	publisher = {CABI Switzerland},
	organization = {CABI Switzerland},
	chapter = {2},
	author = {Gerber, E. and Schaffner, U.}
}
