000 00315nam a2200121Ia 4500
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040 _e188862
_aMAIN
041 _aEnglish
082 _a515 S52B:A
100 _aBroen, A L
245 0 _aAbstract approximation theory. V4: Seminar in anasysis 1969-70
942 _cBK
999 _c228380
_d228380