1. Institute for Agricultural and Food Sciences, Martin-Luther-University Halle-Wittenberg, 06099 Halle (Saale), Germany
2. Leibniz-Institute for Agricultural Development in Central and Eastern Europe (IAMO), Theodor-Lieser- Str. 2, 06120 Halle (Saale), Germany
3. Department of International Wine Business, Applied University RheinMain, Von-Lade-Straße 1, 65366 Geisenheim, Germany