Dickens, J. C., T. L. Payne, L. C. Ryker, and J. A. Rudinsky. 1985. Multiple acceptors for pheromonal enantiomers on single olfactory cells in the Douglas-fir beetle, Dendroctonus pseudotsugae Hopk (Coleoptera: Scolytidae). Journal of Chemical Ecology 11:1359-1370.