1. Impact of atmospheric sulphur deposition on forest ecosystems;Abrahamsen,1979
2. Effects of acid precipitation on soil and forest: methods of field experiments;Abrahamsen,1980
3. Modelling the effect of acid precipitation on soil leachates: a simple approach;Arp;Ecol. Modelling,1983
4. Effects of acid precipitation on soil and forest. Lysimeter experiments in greenhouse;Bjor,1980
5. Sulphate at Birkenes, a small forested catchment in southernmost Norway;Christopherson,1980