@techreport{BorndoerferBreuerGrimmetal.2017, author = {Ralf Bornd{\"o}rfer and Matthias Breuer and Boris Grimm and Markus Reuther and Stanley Schade and Thomas Schlechte}, title = {Timetable Sparsification by Rolling Stock Rotation Optimization}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {17-63}, language = {eng}, year = {2017} }