Jämbäck, J., Heikkinen, O., Tuovinen, M. and Autio, J. (1999) “The effect of air-borne pollutants on the growth of Pinus sylvestris in the City of Oulu, Finland”, Fennia - International Journal of Geography, 177(2), pp. 161–169. Available at: https://fennia.journal.fi/article/view/8941 (Accessed: 23November2024).