Haku
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Cadmium contents of oats (Avena sativa L.) in official variety, organic cultivation, and nitrogen fertilization trials during 1997-1999
(American Chemical Society, 2003)
Yield and quality of selected herb cultivars in Finland
(International Society for Horticultural Science, 2002)
The contribution of new varieties to cereal yields in Finland between 1970 and 2002
(MTT Agrifood Research FinlandNJF, 2003)