@misc{wahl_longterm_changes_2009, 
author={Wahl, B.},
title={Long-term changes of Lake Constance with special regard to the climate impact},
year={2009},
howpublished = {conference paper: Montreal (CDN);},
note = {Wahl, B.: Long-term changes of Lake Constance with special regard to the climate impact. In: Jones, J.; Faaborg, J. (Ed.): Verhandlungen, Proceedings, 30th Congress of the International Association of Theoretical and Applied Limnology. Montreal (CDN). E. Schweizerbart Science Publishers. 2009. 989-992.}}