References
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- Psenner R. & Schmidt, R., 1992: Climate-driven pH control of remote Alpine lakes and effects of acid deposition. — Nature 356: 781–783.
- Sommaruga-WÖGrath, S., Koignig, K.A., Schmidt, R., Sommaruga, R., Tessadri, R. & Psenner, R., 1997: Temperature effects on the acidity of remote alpine lakes. — Nature 387: 64–67.