%0 Journal Article %A M. Kh. Fakhmi %T An equation calculus for primitive recursive rational-valued functions %J Zapiski Nauchnykh Seminarov POMI %D 1972 %P 116-120 %V 32 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1972_32_a16/ %G ru %F ZNSL_1972_32_a16