Piot-Lepetit I, Brümmer B, Kleinhanss W. Impacts of environmental regulations on the efficiency of arable farms in France and Germany. GER J AGR ECON [Internet]. 2001 May 1 [cited 2025 Apr. 4];50(3). Available from: https://www.tib-op.org/ojs/index.php/gjae/article/view/1464