Poikolainen, L., G. Pinto, P. Vihervaara, B. Burkhard, F. Wolff, R. Hyytiäinen, and T. Kumpula. “GIS and Land Cover-Based Assessment of Ecosystem Services in the North Karelia Biosphere Reserve, Finland”. Fennia - International Journal of Geography, vol. 197, no. 2, Nov. 2019, pp. 249-67, doi:10.11143/fennia.80331.