000 00370nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0387152997
082 _a517.5 S676
100 _aSOARE,R.T
245 0 _aRECURSIVELY ENUMERABLE SETS AND DEGRESS: A STUDY OF COMPUTABLE FUNCTIONS AND COM
260 _aBERLIN
_bSpringer
_c1987
300 _a25X17
942 _cBK
_2DDC
999 _c25625
_d25625