Peltonen-Sainio, P., Jauhiainen, L., Hakala, K. and Ojanen, H. 2009. Climate change and prolongation of growing season: changes in regional potential for field crop production in Finland. Agricultural and Food Science. 18, 3-4 (Jan. 2009), 171–190. DOI:https://doi.org/10.2137/145960609790059479.