1. Faculty of Law and Economics and Institute of Botany and Landscape Ecology, Greifswald University, Greifswald, Germany;
2. Department of Agricultural, Environmental and Food Policy, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany;
3. Faculty of Agricultural Sciences, Agricultural University of Georgia, Kakha Bendukidze University Campus, Tbilisi, Georgia;
4. Department of Finance Theory and Economics, Azerbaijan State Agrarian University, Ganja, Azerbaijan;
5. Department of Farm Management/Organic Agricultural Sciences, University of Kassel, Witzenhausen, Germany