AU: R. MOSELLO, T. AMORIELLO, S. BENHAM, N. CLARKE, J. DEROME, K. DEROME, G. GENOUW, N. KOENIG, A. ORRÙ, G. TARTARI, A. THIMONIER, E. ULRICH AND A.-J. LINDROOS. TI: Validation of chemical analyses of atmospheric deposition on forested sites in Europe: 2. DOC concentration as an estimator of the organic ion charge SO: Journal of Limnology VL: 67 NO: 1 PG: 1-14 YR: 2008