Deitmar, Anton, Principles of harmonic analysis / Anton Deitmar and Siegfried Echterhoff. - Germany : Springer, 2025. - xv, 333 Pages : ill. : 23 cm. - Universitext . ISBN: 9781071646328 (pbk.) Subjects--Topical Terms: Harmonic analysis.Abelian group.Fourier series. Dewey Class. No.: 517.57 DEI