Kuhn, W. 1949a. Das Massenauftreten des achtzahnigen Fichtenborkenkafers Ips typographus L. nach Untersuchungen in schweizerischen Waldungen 1946 bis 1949 [Investigations on the outbreak of I. typographus in Swiss forests in 1946-1949]. Eidgenossische Zentralanstalt fur das Forstliche Versuchswesen, Mitteilungen 26(1):245-330.
Kuhn 1949
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