%0 Journal Article %A Hamid Drljević %T On the Stability of the Functional Quadratic on A-orthogonal Vectors %J Publications de l'Institut Mathématique %D 1984 %P 111 %V _N_S_36 %N 50 %I mathdoc %U http://geodesic.mathdoc.fr/item/PIM_1984_N_S_36_50_a17/ %G en %F PIM_1984_N_S_36_50_a17