@article {31,
	title = {Effective yield achievement through new phytosanitary measures with biological control methods as an example},
	journal = {Wissenschaftliche Zeitschrift der Humboldt-Universit{\"a}t zu Berlin, Mathematisch-Naturwissenschaftliche Reihe},
	volume = {35},
	number = {6},
	year = {1986},
	pages = {600-602},
	author = {Adam, H.}
}
