Numbers and Distribution of Waterbirds in the Wadden Sea: Results and Evaluation of 26 Simultaneous Counts in the Dutch-German-Danish Wadden Sea, 1980-1991
Numbers and Distribution of Waterbirds in the Wadden Sea: Results and Evaluation of 26 Simultaneous Counts in the Dutch-German-Danish Wadden Sea, 1980-1991
Hans Meltofte, Jan Blew, John Frikke, Hans-Ulrich Roesner, and Cor J. Smit.