Peltonen-Sainio, P., Pirinen, P., Laapas, M., Mäkelä, H. M., Ojanen, H. and Venäläinen, A. (2016) “Spatial and temporal variation in weather events critical for boreal agriculture: III Frost and winter time fluctuation”, Agricultural and Food Science, 25(1), pp. 71–80. doi: 10.23986/afsci.51467.