1. Barbieri, A. & G. Righetti, 1987. Chimica delle deposizioni atmosferiche nel Cantone Ticino ed effetti sulle acque dei laghi alpini d'alta quota. Documenta Ist ital. Idrobiol. 14: 19–34.
2. Baker, J. P. & C. L. Schofield, 1982. Aluminium toxicity to fish in acidic waters. Wat. Air Soil Pollut. 18: 289–309.
3. Brakke, D. F., A. Henriksen & S. A. Norton, 1990. A variable F-factor to explain changes in base cation concentrations as a function of strong acid deposition. Verh. int. Ver. Limnol. 24: 146–149.
4. Carollo, A., F. Contardi, V. Libera & A. Rolla, 1985. Hydroclimatic cartography of the Lake Maggiore drainage basin. Mem. Ist. ital. Idrobiol. 42: 1–4.
5. Giovanoli R., J. L. Schnoor, L. Sigg, W. Stumm & J. Zobrist, 1988. Chemical weathering of crystalline rocks in the catchment area of acidic Ticino lakes, Switzerland. Clays and Clay Minerals 36: 521–529.