1. The Culture of Poplars in Eastern North America;Dickmann,1983
2. Transformation of Populus hybrids to study and improve pest resistance;Klopfenstein;Silvae Genet.,1993
3. Improvement of woody plant germplasm using a combination of conventional and molecular research techniques;Ernst,1990
4. The potential of biotechnology in temperate agroforestry practices;Klopfenstein;Agroforestry Systems,1995
5. Contributions of molecular biology to improvement of disease resistance in Great Plains tree species;Schumann,1993