%0 Journal Article %A R. I. Freidson %T Finite approximation approach to investigation of the complexity of recursive predicates %J Zapiski Nauchnykh Seminarov POMI %D 1975 %P 131-158 %V 49 %U http://geodesic.mathdoc.fr/item/ZNSL_1975_49_a6/ %G ru %F ZNSL_1975_49_a6