1. Drahos, D.J., Barry, G.F., Hemming, B.C., Brandt, E.J., Kline, E.L., Skipper, H.D. and Kluepfel, D.A. 1992. Use of lacZY chromosomal marker system to study spread and survival of genetically engineered bacteria in soil, p. 147–159. In: Environmental Release of Genetically Engineered Microorganisms. Day, M. J. and Fry, J. C. (Eds.). Academic Press, London.
2. Hirsch, P. 1988. Assessing the environmental risk of releasing genetically manipulated organisms, p. 4–5. In: Science and Change in Agriculture. Hardcastle, J. (Ed.).AFRC publication.
3. Possee, R.D., King, L.A., Weitzman, M.D., Mann, S.G., Hughes, D.S., Cameron, I.R., Hirst, M.L. and Bishop, D.H.L. 1992. Progress in the genetic modification and field release of baculovirus insecticides, p. 47–58. In: The Release of Genetically Modified Microorganisms; Regem 2. Stewart-Tull, D. E. S. and Sussman, M. (Eds.). Plenum Press, New York.
4. Ryder, M., Ophel-Keller, K., Dhindsa, H. and Veal, D. 1994. Detection and characterisation of a genetically modified biocontrol bacterium in field soil, p. 261–263. In: Improving Plant Productivity with Rhizosphere Bacteria. Ryder, M. H., Stephens, P. M. and Bowen, G. D. (Eds.). CSIRO, Adelaide, Australia.