TY - JOUR AU - Liberti, Leo TI - Reformulations in mathematical programming : definitions and systematics JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2009 SP - 55 EP - 85 VL - 43 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2009005/ DO - 10.1051/ro/2009005 LA - en ID - RO_2009__43_1_55_0 ER -