1. Agren, Ch. (1988), Critical loads. Figures continuing downwards, Acid News 3, 1–4.
2. Baranowski, S., and Liebersbach, J. (1978), The intensity of different kinds of rime on the upper tree line in the Sudety Mountains, J Glaciol. 19, 489–497.
3. Błaś, M., and Sobik. (2003) Natural and human impact on pollutant deposition in mountain ecosystems of the Sudetes, In Man and climate in the XX century (ed. Pyka, J.) (Acta Univ. Wratisl. 2542, Studia Geograficzne 75, Wrocław), pp. 420–438.
4. Błaś, M., and Sobik, M. (2000), Fog in the Giant Mountains and selected European massifs, Opera Corcontica 37, 35–46.
5. Błaś, M., and Sobik, M. (2004), The distribution of fog frequency in the Carpathians, Geographia Polonica—General and Applied Climatology: Selected Aspects 77, 19–34.