%0 Journal Article %A Lalitha, C. S. %A Dhingra, Mansi %T Approximate Lagrangian duality and saddle point optimality in set optimization %J RAIRO - Operations Research - Recherche Opérationnelle %D 2017 %P 819-831 %V 51 %N 3 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2016068/ %R 10.1051/ro/2016068 %G en %F RO_2017__51_3_819_0