Chemistry and critical loads of Alpine lakes in Canton Ticino (Southern Central Alps)

Hierarchical Grouping to Optimize an Objective Function

Joe H. Ward · Journal of the American Statistical Association · 1963 · 19.2K citations

Natural Sciences, Computer Science, Mathematics +15

Techniques of trend analysis for monthly water quality data

Robert M. Hirsch, James Richard Slack, Richard A. Smith · Water Resources Research · 1982 · 2.9K citations

Computing, Environmental Sciences, Hydrology +17

Soil acidification from atmospheric ammonium sulphate in forest canopy throughfall

N. van Breemen, P.A. Burrough, E.J. Velthorst et al. · Nature · 1982 · 713 citations · Full text

Agriculture, Forestry, Soil Sciences +15

Long-Term Ecosystem Stress: The Effects of Years of Experimental Acidification on a Small Lake

D. W. Schindler, Kingston H. G. Mills, D. F. Malley et al. · Science · 1985 · 495 citations

Life Sciences, Ecology, Environmental Sciences +14

Chemical weathering of silicate rocks as a function of elevation in the southern Swiss Alps

James I. Drever, Jűrg Zobrist · Geochimica et Cosmochimica Acta · 1992 · 277 citations

Natural Sciences, Earth Sciences, Geology +16