00387nam a2200109Ia 4500008004100000040003800041100002100079245010900100260003500209300001700244653001600261211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aTietze, Heinrich 0aFamous problems of mathematics: solved and unsolved mathematical problems from antiquity to modern times  bGraylock PressaNew Yorkc1965  axvi, 367p p.  aMathematics