00334nam a2200121Ia 45000030006000000080041000060400015000471000017000622450095000792600009001745460012001830050017001950STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aEagle Albert  aPractical treatise on Fourier,s theorem and Harmonic analysis for physicists and engineers  c1925  aEnglish20220125170142.0