1. Genetic improvement of willow (Salix) as a source of bioenergy;Ahman;Nor. J. agric. Sci.,1994
2. Field performance of Populus in short-rotation intensive culture plantations in the north-central United States;Hansen,1994
3. Skadegorare i energishog av Salix;Forsberg,1991
4. A review of the potential diseases of Alnus and Salix in energy plantations;Hubbes,1983
5. A Guide to Insect, Disease and Animal Pests of Poplars;Ostry,1989