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Cost-effectiveness of measures in agriculture to reduce the nitrogen load flowing via the Danube River into Black Sea

Wilfried Schönbäck; Horst Behrendt; Lena Fröschl; Draghici Manea; Roger Pierrard; Erika Quendler
2006
Jahrbuch der Österreichischen Gesellschaft für Agrarökonomie. - 15(2006), S. 65-75

To be, or not to be, a non-native freshwater fish?

by G. H. Copp; P. G. Bianco; N. G. Bogutskaya; T. Erös; I. Falka; M. T. Ferreira; M. G. Fox; J. Freyhof; R. E. Gozlan; J. Grabowska; V. Kovác; R. Moreno-Amich; A. M. Naseka; M. Penáz; M. Povz; M. Przybylski; M. Robillard; I. C. Russell; S. Stakenas; S. Sumer; A. Vila-Gispert; C. Wiesner...
2005
Journal of applied ichthyology. - 21(2005)4, S. 242-262

First records of Cobitis elongatoides and Sabanejewia baltica (Cobitidae) for Germany

Jörg Bohlen; Jörg Freyhof; Christian Wolter
2005
Cybium. - 29(2005)2, S. 179-183