@article{ErmertHillebrand2014, author = {Ermert, Volker and Hillebrand, Philipp}, title = {K{\"o}lner Mobilit{\"a}tsgipfel : alternatives Verkehrskonzept}, journal = {Rhein-Schiene}, volume = {26}, number = {53}, pages = {27}, year = {2014}, language = {de} }