Hydrology and Water Resources Management, Brandenburg University of Technology Cottbus-Senftenberg, Siemens-Halske-Ring 10, Cottbus, Germany
Chair of Economics, in Particular Environmental Economics, Brandenburg University of Technology Cottbus-Senftenberg, Erich-Weinert-Straße 1, Cottbus, Germany
Copyright © 2018 Markus Klemens Zaplata, Lutz Philip Hecker et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.