%0 Journal Article %A A. V. Babash %T Approximate models of permutation automata %J Diskretnaya Matematika %D 1997 %P 103-122 %V 9 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_1997_9_1_a8/ %G ru %F DM_1997_9_1_a8