1. Air pollution of Murmansk region;Ratkin,1993
2. Pollution-induced changes in the vegetation cover of spruce and pine ecosystems in the Kola North region;Lukina,1993
3. The migration of pollutants in percolation water in pine forests in the sorroundings of the “Severonickel” smelter complex;Petrova,1993
4. Analytical problems in the determination of inorganic soil contaminants;Blaser,1993
5. Methods of anatomo-histologic study of plant tissue;Furst,1970