1.
Virtanen T, Mikkola K, Nikula A. Satellite image based vegetation classification of a large area using limited ground reference data: a case study in the Usa Basin, north-east European Russia. polar [Internet]. 2004Jun.1 [cited 2026Mar.31];23(1):51-66. Available from: https://polarresearch.net/index.php/polar/article/view/2073