HEIKKINEN, O.; TUOVINEN, M.; AUTIO, J. What determines the timberline?. Fennia - International Journal of Geography, [S. l.], v. 180, n. 1-2, p. 67–74, 2002. Disponível em: https://fennia.journal.fi/article/view/3765. Acesso em: 10 may. 2024.