Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Novak, V., and P. Svihra. 1970. Atraktivita lykozrouta smrkoveho (Ips typographus L) k terpenum a feromonum [Attraction of the spruce bark beetle to terpenes and a pheromone] . Lesnictvi 16:1051-1062.