Haku
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Distribution of migratory plant parasitic nematodes in cultivated Finnish soils
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1988)
The distribution of the potato cyst nematode, Heterodera rostochiensis Wollenweber, in Finland
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1976)
Influence of sugarbeet and non-host plants on a field population of Heterodera schachtii
(Agricultural Research CentreMaatalouden tutkimuskeskus, 1985)