1. Abrahamson WG, Armbruster PO, Maddox GD (1983) Numerical relationship of the Solidago altissima stem gall insect-parasitoid guild food chain. Oecologia 58:351?357
2. Abrahamson WG, Weis AE (1987) Nutritional ecology of arthropod gallmakers. In: Slansky F Jr., Rodriquez JG (eds) Nutritional ecology of insects, mites, spiders, and related invertebrates. John Wiley & Sons, Inc., Publishers, New York, pp 235?258
3. Askew RR (1961) On the biology of the inhabitants of oak galls of Cynipidae (Hymenoptera) in Britain. Trans Soc for British Ent 14:237?268
4. Beck EG (1947) Some studies of the Solidago gall caused by Eurosta solidaginis Fitch. Ph.D. dissertation, University of Michigan, Ann Arbor
5. Bergman JM, Tingey WM (1979) Aspects of interaction between plant genotypes and biological control. Bull Entomol Soc Am 25:275?279