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Composition of weed flora in spring cereals in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1969)
Chemical weed control in Finland in 1887-1965
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1969)
The biomass of weeds in winter cereal fields in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1985)