@article{BorndoerferGroetschelJaeger2010, author = {Ralf Bornd{\"o}rfer and Martin Gr{\"o}tschel and Ulrich J{\"a}ger}, title = {Planning Problems in Public Transit}, journal = {Production Factor Mathematics}, pages = {95 -- 122}, doi = {10.1007/978-3-642-11248-5}, year = {2010}, }