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1Published 1987“...World crops (Hague, Netherlands) ;...”
Book -
2Published 1983“...World crops (Hague, Netherlands) ;...”
Conference Proceeding Book -
3Published 1985“...World crops (Hague, Netherlands) ;...”
Book -
4Published 1981“...World crops (Hague, Netherlands) ;...”
Book -
5Published 1984“...World crops (Hague, Netherlands) ;...”
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