TY - JOUR AU - Dijana Ilišević TI - Quadratic functionals on modules over complex Banach $\ast $-algebras with an approximate identity JO - Studia Mathematica PY - 2005 SP - 103 EP - 123 VL - 171 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm171-2-1/ DO - 10.4064/sm171-2-1 LA - en ID - 10_4064_sm171_2_1 ER -