TY - JOUR AU - Milanka Gardašević Filipović TI - A Trust Region Method Using Subgradient for Minimizing a Nondifferentiable Function JO - Yugoslav journal of operations research PY - 2009 SP - 249 VL - 19 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/YJOR_2009_19_2_a3/ LA - en ID - YJOR_2009_19_2_a3 ER -