Kyle Cooper Susan R. Hunter Kalyani Nagaraj Biobjective Simulation Optimization on Integer Lattices Using the Epsilon-Constraint Method in a Retrospective Approximation Framework. 1080-1100 2020 32 INFORMS J. Comput. 4 https://doi.org/10.1287/ijoc.2019.0918 db/journals/informs/informs32.html#CooperHN20