Tikkanen, Matti, and Olli Ruth. “Origins and Development of the Ancient Outflow Channel of the River Vantaanjoki, Southern Finland, As Indicated by Fluvial Sediments”. Fennia - International Journal of Geography 181, no. 1 (January 1, 2003): 69–83. Accessed April 29, 2024. https://fennia.journal.fi/article/view/3757.