00988nam a22002655i 4500991002189839707536cr nn 008mamaa121227s1979 gw | s |||| 0|eng d9783540384809b1413522x-39ule_instBibl. Dip.le Aggr. Matematica e Fisica - Sez. Matematicaeng51023Epstein, Richard L.46609Degrees of unsolvability: structure and theory[e-book] /by Richard L. EpsteinBerlin :Springer,19791 online resource (xiv, 246 p.)Lecture Notes in Mathematics,0075-8434 ;759MathematicsSpringer eBookshttp://dx.doi.org/10.1007/BFb0067135An electronic book accessible through the World Wide Web.b1413522x03-03-2205-09-13991002189839707536Degrees of unsolvability81037UNISALENTOle01305-09-13m@ -enggw 00