000 00351nam a2200133Ia 4500
008 200208s9999 xx 000 0 und d
082 _aGL 501 NAG
100 _a"Nagel, Ernest"
245 0 _aStrucutre of science: problems in the logic of scientific explanation
260 _c1960
300 _a618p
650 _aScience methodology
942 _cB
999 _c193493
_d193493