1. Akre, R.D., Greene, A., MacDonald, J.F., Landolt, P.J., Davis, H.G., 1981. The Yellow Jackets of America North of Mexico. US Department of Agriculture, Agriculture Handbook No. 552.
2. A model for the effect of Sphecophaga vesparum vesparum as a biological control agent of the common wasps in New Zealand;Barlow;Journal of Applied Ecology,1996
3. Beggs, J.R., 1988. Energetics of kaka in a South Island beech forest. MSc thesis, University of Auckland.
4. Altitudinal variation in abundance of common wasps (Vespula vulgaris);Beggs;New Zealand Journal of Zoology,1991
5. Comparison of the quality of red and silver beech (Nothofagus) seed in Nelson Lakes National Park;Beggs;New Zealand Journal of Botany,1999