Yli-Jokipii, Pentti. “Trends in Finnish Geography in the 1980 and Early 1990s in the Light of the Geographical Journals, With a Bibliography”. Fennia - International Journal of Geography 172, no. 2 (February 1, 1994): 191–234. Accessed January 8, 2026. https://fennia.journal.fi/article/view/8905.