00285nam a2200109Ia 4500008004100000041000800041082002200049100002200071245006500093260000900158300000800167211209s1974    xx            000 0 und d  aeng  a515.243 3 N74 SPI  aSPIEGEL, MURRAY R  aSCHAUM'S OUTLINE OF THEORY AND PROBLEMS OF FOURIER ANALYSIS   c1974  a191