00709nam0-22002531i-450-990001294580403321000129458FED01000129458(Aleph)000129458FED0100012945820000920d1978----km-y0itay50------baengRecursion-Theoretic Hierarchiesby HINMAN P.Berlin [etc.]Springer-Verlag1978Perspectives in mathematical logicHinman,Peter G.46732ITUNINARICAUNIMARCBK990001294580403321C-48-(219624MA1MA1Recursion-Theoretic Hierarchies354813UNINAING01