Schönbäck, W., Behrendt, H., Fröschl, L., Manea, D., Pierrard, R., & Quendler, E. (2006). Cost-effectiveness of measures in agriculture to reduce the nitrogen load flowing via the Danube River into the Black Sea - A comparison of Austria, Hungary and Romania. In I. Darnhofer (Ed.),
Jahrbuch der österreichischen Gesellschaft für Agrarökonomie, Band 15 (pp. 65–75). Facultas.
http://hdl.handle.net/20.500.12708/63337 ( reposiTUm)