1. The effect of acclimation on the resistance of the adults of Blastophagus piniperda L. (Col., Scolytidae) to certain low and high temperatures;Annila;Ann. Ent. Fenn.,1964
2. Ecological studies on bark beetles (Coleoptera: Scolytidae) associated with Scots pine (Pinus sylvestris L.) in Norway with particular reference to the influence of temperature;Bakke;Medd. Norske Skogforsøksv.,1968
3. Host tree and bark beetle interaction during a mass outbreak of Ips typographus in Norway;Bakke;Z. ang. Ent.,1983
4. Spatial and temporal patterns of emergence for within-tree populations of Dendroctonus frontalis (Coleoptera, Scolytidae);Coulson;Can. Ent.,1979
5. Über die Zonenbildung der Insektenkalamitäten in Urwäldern;Franz;Forstw. Cbl.,1948