00290nam a2200109Ia 4500008004100000082001500041100001300056245005900069260003400128300001000162650000800172060110s9999    xx            000 0 und d  a515bPOL/P  aPOLYA, G  aProblems and theorems in analysiscBy G Polya, G Szego  bNarosa Publishing Housec1972  a389p.  a515