Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Bombosch, S. 1972. Untersuchungen zur Rationalisierung der Bekampfung des Buchdruckers (Ips typographus) [Rationalizing the control of Ips typographus]) . Allgemeine Forstzeitschrift 27:396-397.