TY - JOUR AU - Hamdi, Abdelouahed AU - Taati, Akram AU - Almaadeed, Temadher A. TI - Quadratic problems with two quadratic constraints: convex quadratic relaxation and strong lagrangian duality JO - RAIRO. Operations Research PY - 2021 SP - S2905 EP - S2922 VL - 55 PB - EDP-Sciences UR - https://www.numdam.org/articles/10.1051/ro/2020130/ DO - 10.1051/ro/2020130 LA - en ID - RO_2021__55_S1_S2905_0 ER -