Muilu, T., Rusanen, J. and Naukkarinen, A. (2001) “Supporters and dependants: the concept of economic dependency ratio as an indicator of changes in regional structures in Finland in 1989-1997”, Fennia - International Journal of Geography, 179(1), pp. 71–87. Available at: https://fennia.journal.fi/article/view/9184 (Accessed: 23November2024).