%0 Journal Article %A Yu. V. Matiyasevich %T Two reductions of Hilbert's tenth problem %J Zapiski Nauchnykh Seminarov POMI %D 1968 %P 145-158 %V 8 %U http://geodesic.mathdoc.fr/item/ZNSL_1968_8_a14/ %G ru %F ZNSL_1968_8_a14