Schaft, Franziska, and Alfons Balmann. “20 Years of Transition in Agriculture: What Has Been Achieved? Where Are We Heading? Findings of the 2009 IAMO Forum in Halle June 17-19, 2009”. German Journal of Agricultural Economics, vol. 58, no. 7, Oct. 2009, doi:10.52825/gjae.v58i7.1762.