00309nam a2200109Ia 4500008004100000040003800041100001800079245004300097260003000140300001300170653001600183211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aNatanson, I P 0aTheory of functions of a real variable  bFREDERICK UNGARaNEW YORK  a265 P p.  aMATHEMATICS