@ARTICLE {5320,
author={R. A. Andreani and J. J. Júdice and J.  Patrício},
doi={10.1007/s11075-010-9439-0},
journal={Numerical Algorithms},
title={A projected-gradient interior-point algorithm for complementarity problems},
year={2011},
month={August},
volume={57},
number={4},
pages={457-485},
ISSN={1017-1398}
}