"Zones humides Conservation Congrès." . . "Biotopschutz." . . "Naturschutz." . . "Écologie des zones humides Congrès." . . . . "Feuchtgebiet." . . "Institution of Civil Engineers (Great Britain)" . . "Zones humides Gestion Congrès." . . "Kongreß." . . . "Wetland management : proceedings of the international conference held in London on 2-3 June 1994" . "Aufsatzsammlung" . . . "Wetland management : proceedings of the international conference organized by the Institution of Civil Engineers and held in London on 2-3 June 1994" . . . "Conference papers and proceedings" . . "London (1994)" . . . . "Wetland management proceedings of the international conference organized by the Institution of Civil Engineers and held in London on 2-3 June 1994" . . . . . . . . . . . . . . . "Wetland management : proceedings of the international conference ... and held in London on 2-3 June 1994" . . . . . . . .