@article{
DeS:99-01,
author={B. {D}e Schutter},
title={Optimizing acyclic traffic signal switching sequences through an extended
linear complementarity problem formulation},
journal={European Journal of Operational Research},
volume={139},
number={2},
pages={400--415},
month=jun,
year={2002},
doi={
10.1016/S0377-2217(01)00364-2}
}