Egger, A. 1987. Pheroprax-Versuche gegen den Buchdrucker (Ips typographus L) 1978-1981 [Pheroprax trials against the spruce bark beetle Ips typographus 1978-1981] [English summary] . Centralblatt fur das Gesamte Forestwesen 104:157-190.
Egger 1987
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