Available at ETH Zurich library: website link here.

Proceedings of the Twentieth International Symposium Section Ornamentals,
Melle, Belgium, 3-6 July, 2001
Editors: J. Van Huylenbroeck, E. Van Bockstaele and P. Debergh
Volume 1: Acta Horticulturae 552, July 2001, ISBN 90-6605-834 X
Price: EUR 53.-- (for non-members of ISHS)
Volume 2: Acta Horticulturae 572, February 2002, ISBN 90-6605-825 0
Price: EUR 55.-- (for non-members of ISHS)
Obtainable from: Secretariat ISHS
P.O. Box 500, B-3001 Leuven 1, Belgium
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