1. A model for the temperature and density dependent reemergence of the bark beetle Ips typographus;Anderbrant;Entomol. exp. appl.,1986
2. Influence of temperature upon the development and voltinism of Ips typographus L. (Coleoptera, Scolytidae);Annila;Ann. Zool. Fenn.,1969
3. Seasonal flight patterns of spruce bark beetles;Annila;Ann. Ent. Fenn.,1977
4. The determination and significance of the base temperature in a linear heat unit system;Arnold;Am. Soc. Hortic. Sci.,1959
5. Some problems in using meteorological data to forecast the timing of insect life cycles;Baker;EPPO Bull.,1980