3225 2011 2011 eng conferenceobject Springer 0 -- -- -- Determining Fair Ticket Prices in Public Transport by Solving a Cost Allocation Problem Appeared in: Modeling, Simulation and Optimization of Complex Processes, Proceedings of the Fourth International Conference on High Performance Scientific Computing, March 2-6, 2009, Hanoi, Vietnam 10.1007/978-3-642-25707-0_5 yes Ralf Borndörfer Nam-Dung Hoang Mathematical Optimization Borndörfer, Ralf ZIB-CostShare Applied Optimization