Calibration and validation of hyperspectral imagery using a permanent test field. - Lauri Markelin; Eija Honkavaara; Tuure Takala; Petri Pellikka (WHISPERS, 2013)

A forestry GIS-based study on evaluating the potential of imaging spectroscopy in mapping forest land fertility. - Matti Mottus; Tuure Takala (Int. J. Appl. Earth Obs. Geoinformation, 2014)