Dr J. Leunissen en Dr J. Nordik National Centre CAOS/CAMM for Computer
Aided Chemistry and Bioinformatics, KUN PO Box 9010, 6500 GL Nijmegen,
Nederland Tel. 024-3652137/3653386,
Dr J de Vlieg Unilever Research Laboratorium Vlaardingen
Dr R.C. Jansen en Dr J. Sandbrink Centre for Plant Breeding and
Reproduction Research (CPRO-DLO) PO Box 16, 6700 AA Wageningen,
Nederland Tel. 0317-477225 email: R.C.JANSEN@CPRO.DLO.NL
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