Tømmervik, H., K.-A. Høgda, J. Åge Riseth, S.-R. Karlsen, and F. E. Wielgolaski. “Growing season changes in Fennoscandia and Kola peninsula during the period 1982 to 1999 - Implications for reindeer husbandry (In Norwegian with Summary in English)”. Rangifer, vol. 25, no. 3, Apr. 2005, pp. 89-98, doi:10.7557/2.25.3.1743.