Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Schneider-Orelli, O. 1948b. Richtlinien zur Borkenkafer-Bekampfung in den schweizerischen Waldern fur 1948 [Principles of bark beetle control in the forests of Switerland in 1948] . Schweizerische Zeitschrift fur Forstwesen 99:1.