1. The acidity of Scandinavian precipitation;Barret;Tellus,1955
2. Annual precipitation map of Europe;Blüthgen,1958
3. Air pollution across national boundaries. The impact on the environment of sulfur in air and precipitation;Bolin,1971
4. Regional dispersion and deposition of atmospheric pollutants with particular application to sulfur pollution over western Europe;Bolin;Tellus,1975