TY - JOUR A1 - Moldan, F. A1 - Wright, R. F. A1 - Löfgren, S. A1 - Forsius, M. A1 - Ruoho-Airola, T. A1 - Skjelkvåle, B. L. T1 - Long-term changes in acidification and recovery at nine calibrated catchments in Norway, Sweden and Finland JO - Hydrol. Earth Syst. Sci. J1 - HESS VL - 5 IS - 3 SP - 339 EP - 350 Y1 - 1999/11/30 PB - Copernicus Publications SN - 1027-5606 UR - http://www.hydrol-earth-syst-sci.net/5/339/2001/ L1 - http://www.hydrol-earth-syst-sci.net/5/339/2001/hess-5-339-2001.pdf ER -