%0 Journal Article %A Havel, Ivan M. %T The concept of indirectness in artificial intelligence %J Kybernetika %D 1972 %P 154-164 %V 8 %N 2 %U http://geodesic.mathdoc.fr/item/KYB_1972_8_2_a4/ %G en %F KYB_1972_8_2_a4