@techreport{GrimmScheweSchmidtetal.2017, author = {Grimm, Veronika and Schewe, Lars and Schmidt, Martin and Z{\"o}ttl, Gregor}, title = {A Multilevel Model of the European Entry-Exit Gas Market}, series = {Mathematical Methods of Operations Research}, journal = {Mathematical Methods of Operations Research}, number = {89(2)}, url = {https://opus4.kobv.de/opus4-trr154/134}, pages = {223 -- 255}, year = {2017}, language = {en}, type = {Preprint}, institution = {TRR 154} }