000 00286nam a2200109Ia 4500
008 201121s9999 xx 000 0 und d
100 _aBrowdr,F.E.
245 0 _aBulletin of the American Mathematical Society
260 _bU S A: Prodence, R hode island
300 _c542
942 _cBV
999 _c16651
_d16651