A new variant of the minimumweight maximum-cardinality clique problem to solve con icts between aircraft - Lehouillier, Thibault; Omer, Jérémy; Soumis, François; Desaulniers, Guy (Modelling, Computation and Optimization in Information Systems and Management Sciences, Proceedings of the 3rd International Conference on Modelling, Computation and Optimization in Information Systems and Management Sciences - MCO 2015 - Part I, 2015)