%0 Journal Article %A Šebelík, Jan %T Horn clause programs and recursive functions defined by systems of equations %J Kybernetika %D 1982 %P 106-120 %V 18 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1982__18_2_a1/ %G en %F KYB_1982__18_2_a1