1. Anderson, A.: 1992. Trace elements in agricultural soils. Fluxes, balances and background values. Swedish Env. Prot. Agency. Report 4077. Uppsala. 1–40.
2. Bozó, L.–Horváth, Zs.: 1992. Atmospheric concentration and budget of Pb and Cd over Hungary. Ambio. 21: 324–326.
3. Boxman, A. W.–Roy, C. J. H.–Peters, J.–Roelofs, G. M.: 2008. Long-term changes in atmospheric N and S throughfall deposition and effects on soil solution chemistry in scots pine forest in the Netherlands. Environmental Pollution. 156: 1252–1259.
4. Chojnaczki, A.: 1970. The content of mineral components in atmospheric precipitation in relation to natural and economical conditions of Poland. Polish J. of Soil Science. 3: 39–46.
5. Chojnaczki, A.–Zórawska, B.: 1980. The content of mineral N in soils and yields of plants as indicator of the atmospheric pollution in Pulawy region. [In: Spáleny, J. (ed.) Proc. of the 3rd Int. Conf. of Bioindications.] Academia. Praha. 181–187.