Reference

C. Kamenik, K. Koinig, Roland Schmidt, P.G. Appleby, J.A. Dearing, A. Lami, R. Thompson, R. Psenner (2000): Eight hundred years of environmental changes in a high alpine lake (Gossenköllesee, Tyrol) inferred from sediment records – J. Limnol. Suppl. 1 – 59: 43 - 52.