1. Pheromon in the bark beetle, Ips acuminatus Gyll;Bakke;Z. ang. Ent.,1967
2. Studies on the flight behavior of Ips confusus (Lec.), (Coleoptera: Scolytidae) in response to attractive material;Gara;Contrib. Boyce Thompson Inst.,1963
3. The flight and olfactory behavior of checkered beetles (Coleoptera: Cleridae) predatory on the Douglas-fir beetle O.U.S;Harwood;Techn. Bull. No.,1966
4. Laboratory and field methods for assaying olfactory responses of the Douglas-fir bettle, Dendroctonus pseudotsugae Hopk;Jantz;Canad. Ent.,1965