Conference Paper
Winkler, H.; Berthold, P.; Leisler, B.: Monitoring of bird populations in the Lake Neusiedl area. In: Proceedings of an International Workshop, Vol.
31, pp. 29 - 36 (Eds. Aubrecht, G.; Dick, G.; Prentice, C.). Monitoring of ecological change in wetlands of middle Europe. International Workshop, Linz, October 26, 1993 - October 30, 1993. Botanische Arbeitsgemeinschaft am Oberösterreichischen Landesmuseum, Linz (1994)