Simonsen, V., Jørgensen, R. B., Kjellsson, G. (Ed.), Simonsen, V. (Ed.) & Ammann, K. (Ed.) (1997).
Genetic Engineering Techniques. In G. Kjellsson, V. Simonsen & K. Ammann (Eds.),
Methods for Risk Assessment of Transgenic Plants: II. Pollination, Gene-Transfer and Population Impacts (pp. 195-202). Birkhäuser Verlag.