Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Birgersson, G., J. Byers, G. Bergstrom, and J. Lofqvist. 1990. Production of pheromone components, chalcogran and methyl(e,z)-2,4-decadiendate, in the spruce engraver Pityoenes chalcographus . Journal of Insect Physiology 36:391-395.