D. Mills
Maria Grazia DeWald
Y. P. S. Bajaj
Christian Schöpke
Stephen Gregory DeWald
Symposium on the Micropropagation of Saintpaulia (1987 Lullier, Switzerland)
David B. Neale
Donald Wetherell
E. C. Pua
International Wood Biotechnology Symposium (2001 Narita-shi, Japan)
Pierik, R. L. M.
Jean-Pierre Zrÿd
M. O. Sy
Chih-wei V. Tsao
ISHS Symposium on in Vitro Culture and Horticultural Breeding (5th 2004 Debrecen, Hungary)
Dennis Yeo