%0 Journal Article %A Aleksandar Krapež %T Quadratic Level Quasigroup Equations With Four Variables I %J Publications de l'Institut Mathématique %D 2007 %P 53 %V _N_S_81 %N 95 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2298/PIM0795053K/ %R 10.2298/PIM0795053K %G en %F 10_2298_PIM0795053K