Haku
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Soil water-retention characteristics and fertility of afforested arable land
(Finnish Society of Forest ScienceFinnish Forest Research InstituteFaculty of Agriculture and Forestry of the University of HelsinkiFaculty of Forestry of the University of Joensuu, 2005)
The visual preferences for forest regeneration and field afforestation - four case studies in Finland
(Finnish Society of Forest ScienceFinnish Forest Research InstituteFaculty of Agriculture and Forestry of the University of HelsinkiFaculty of Forestry of the University of Joensuu, 2006)