http://jeb.biologists.org/content/200/23/2969.abstract?sid=688bb79e-03d7-4547-a954-9abead44fb90 (Publisher version)
Fan, R. J., Anderson, P., & Hansson, B. (1997). Behavioural analysis of olfactory conditioning in the moth Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). Journal of Experimental Biology, 200(23), 2969-2976.