Linear inequalities among graph invariants: Using GraPHedron to uncover optimal relationships. - Julie Christophe; Sophie Dewez; Jean-Paul Doignon; Gilles Fasbender; Philippe Grégoire; David Huygens; Martine Labbé; Sourour Elloumi; Hadrien Mélot; Hande Yaman (Networks, 2008)

New formulations and valid inequalities for a bilevel pricing problem. - Sophie Dewez; Martine Labbé; Patrice Marcotte; Gilles Savard (Oper. Res. Lett., 2008)