@ARTICLE {5306,
author={J. J. Júdice and M.J.A. Alves and S.D. Dempe},
doi={10.1080/02331934.2010.511674},
journal={Optimization},
title={Computing the Pareto frontier of a bi-objective bi-level linear problem using a multiobjective mixed-integer programming algorithm},
year={2012},
month={March},
volume={61},
number={3},
pages={335-358},
ISSN={0233-1934}
}