@incollection{GroetschelBorndoerferLoebel2003, author = {Martin Gr{\"o}tschel and Ralf Bornd{\"o}rfer and Andreas L{\"o}bel}, title = {Duty Scheduling in Public Transit}, booktitle = {MATHEMATICS - Key Technology for the Future}, editor = {Willi J{\"a}ger and Hans-Joachim Krebs}, pages = {653 -- 674}, doi = {10.1007/978-3-642-55753-8_50}, year = {2003}, }