Reference

Rudolf Wegensteiner, J. Weiser (1996): Investigations on the occurence of pathogens on Ips typographus L. (Coleoptera, Scolytidae) from a nature reserve in the Black Forest (Baden-Württemberg) – Anz. Schädlingsk., Pflanzenschutz, Umweltschutz – 69/7: 162 - 167.