000 00309nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a517.52 N2724
100 _aNATANSON.I.P
245 0 _aTHEORY OF FUNCTIONS OF A REAL VARIABLE
260 _aNEW YORK
_bUNGAR PUB
_c1955
300 _a25X18
942 _cBK
_2DDC
999 _c10406
_d10406