V.  Vikberg and Itämies, J., ?Buckthorn (Hippophaë rhamnoides L., Elaeagnaceae), a new important food plant for the larva of Tenthredo vespa Retzius in Finland (Hymenoptera: Tenthredinidae).?, Entomologica Fennica, vol. 10, pp. 201-208, 1999.

R.  Leinonen, Kutenkova, N., Ahola, M., Itämies, J., and Vikberg, V., ?The ecology, genitalia and larval morphology of Polythrena coloraria Herrich-Schäfer, 1855 (Lepidoptera: Geometridae), with records of its egg parasitoid Telenomus acarnas Kozlov & Kononova, 1977 (Hymenoptera: Scelionidae).?, Entomologica Fennica, vol. 17, pp. 56-64, 2006.