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008 230617s1973 xxu|| p 0 0eng d
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_brus
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041 0 _aeng
044 _axxu
245 1 0 _aVol. 95 No. 4
260 _c1973
773 1 8 _7nnas
_gVol. 95 No. 4
_tAmerican Journal of Mathematics. 1973
_w000012267
_x0002-9327
856 4 0 _uhttps://www.jstor.org/stable/10.2307/i340803
942 _cIS
999 _c12271
_d12271