@misc{NakatenKempka2019, author = {Natalie Christine Nakaten and Thomas Kempka}, title = {Retraction: Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness. (Retraction of Vol 10, art no 1643, 2017)}, booktitle = {Energies : open-access journal of related scientific research, technology development and studies in policy and management}, volume = {12}, number = {17}, issn = {1996-1073}, doi = {10.3390/en12173253}, institution = {Institut f{\"u}r Geowissenschaften}, type = {other}, pages = {1}, year = {2019}, }