@article{
WanDeS:14-017,
author={Y. Wang and B. {D}e Schutter and T.J.J. van den Boom and B. Ning and T.
Tang},
title={Efficient bi-level approach for urban rail transit operation with
stop-skipping},
journal={IEEE Transactions on Intelligent Transportation Systems},
volume={15},
number={6},
pages={2658--2670},
month=dec,
year={2014},
doi={
10.1109/TITS.2014.2323116}
}