Populus nigra network: Report of the 4th meeting, 3-5 October 1997, Geraardsbergen, Belgium

European Forest Genetic Resources Programme; Turok, J.; Lefèvre, F.; de Vries, S.; Alba, N.; Heinze, B.; Van Slycken, J. (comps.) (1998) Populus nigra network. n. 85 p. ISBN: 978-92-9043-375-0, ISBN: 92-9043-375-2