%0 Journal Article %A Sava Krstić %T Two Results on Associativity of Composite Operations in Groups %J Publications de l'Institut Mathématique %D 1983 %P 123 %V _N_S_33 %N 47 %I mathdoc %U http://geodesic.mathdoc.fr/item/PIM_1983_N_S_33_47_a17/ %G en %F PIM_1983_N_S_33_47_a17