Koutaniemi, Leo. “Complexity of Solar Variability, Hydrology and Climatic Conditions As Evidenced in the Case of the Oulujoki and Kemijoki River Basins, Northern Finland”. Fennia - International Journal of Geography 161, no. 2 (February 1, 1983): 289–301. Accessed November 23, 2024. https://fennia.journal.fi/article/view/9097.