000 00297nam a2200121Ia 4500
001 127549
008 170722s9999 xx 000 0 und d
100 _aOen University Course Team
245 _aRecursive functions. /
260 _bOpen university Press
_aGB
_c1973
300 _app 40
942 _cGEN
999 _c9003
_d9003