@unpublished{GrimmGruebelSchmidtetal.2023, author = {Grimm, Veronika and Gr{\"u}bel, Julia and Schmidt, Martin and Schwartz, Alexandra and Wiertz, Ann-Kathrin and Z{\"o}ttl, Gregor}, title = {On a Tractable Single-Level Reformulation of a Multilevel Model of the European Entry-Exit Gas Market with Market Power}, url = {https://opus4.kobv.de/opus4-trr154/527}, pages = {31}, year = {2023}, language = {en}, type = {Preprint}, institution = {TRR 154} }