00960nam--2200337---450-99000322663020331620090423140636.0000322663USA01000322663(ALEPH)000322663USA0100032266320090423d1971----km-y0itay50------baengNL||||||||001yyDegrees of unsolvabilityShoenfield Joseph R.AmsterdamNorth Holland1971111 p.24 cmNorth Holland mathematics studies22001North Holland mathematics studiesLogica matematica511.3SHOENFIELD,Joseph R.50563ITsalbcISBD990003226630203316511.3 SHO5316/CBS511.300218406BKSCIRSIAV69020090423USA011406Degrees of Unsolvability340189UNISA