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008 240413s1969 xxu|| p 0 0eng d
022 _a0002-9904
040 _aRuMoBEN
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041 0 _aeng
044 _axxu
245 1 0 _aVol. 75 No. 4
260 _c1969
773 1 8 _7nnas
_gVol. 75 No. 4
_tBulletin of the American Mathematical Society. 1969
_w000015999
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942 _cIS
999 _c16099
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