Arnold Sommerfeld "Mathematische Theorie der Diffraction" Math. Ann. 47 317-374 (1896)
Arnold Sommerfeld, translated by Raymond J. Nagem, Mario Zampolli, and Guido Sandri Mathematical Theory of Diffraction (Birkhäuser Boston, 2003) ISBN 0-8176-3604-8
Arnold Sommerfeld Atombau und Spektrallinien (Friedrich Vieweg und Sohn, Braunschweig, 1919)
Arnold Sommerfeld, translated from the third German edition by Henry L. Brose Atomic Structure and Spectral Lines (Methuen, 1923)
Arnold Sommerfeld, Three Lectures on Atomic Physics (London: Methuen, 1926)
Arnold Sommerfeld Atombau und Spektrallinien, Wellenmechanischer Ergänzungband (Vieweg, Braunschweig, 1929)
Arnold Sommerfeld, translated by Henry L. Brose Wave-Mechanics: Supplementary Volume to Atomic Structure and Spectral Lines (Dutton, 1929)
Arnold Sommerfeld Lectures on Wave Mechanics Delivered before the Calcutta University (Calcutta University, 1929)
Arnold Sommerfeld and Hans Bethe Elektronentheorie der Metalle in H. Geiger and K. Scheel, editors Handbuch der Physik Volume 24, Part 2, 333-622 (Springer, 1933). This nearly 300-page chapter was later published as a separate book: Elektronentheorie der Metalle (Springer, 1967).
Arnold Sommerfeld Mechanik - Vorlesungen über theoretische Physik Band 1 (Akademische Verlagsgesellschaft Becker & Erler, 1943)
Arnold Sommerfeld, translated from the fourth German edition by Martin O. Stern Mechanics - Lectures on Theoretical Physics Volume I (Academic Press, 1964)
Arnold Sommerfeld Mechanik der deformierbaren Medien - Vorlesungen über theoretische Physik Band 2 (Akademische Verlagsgesellschaft Becker & Erler, 1945)
Arnold Sommerfeld, translated from the second German edition by G. Kuerti Mechanics of Deformable Bodies - Lectures on Theoretical Physics Volume II (Academic Press, 1964)
Arnold Sommerfeld Elektrodynamik - Vorlesungen über theoretische Physik Band 3 (Klemm Verlag, Erscheinungsort, 1948)
Arnold Sommerfeld, translated from the German by Edward G. Ramberg Electrodynamics - Lectures on Theoretical Physics Volume III (Academic Press, 1964)
Arnold Sommerfeld Optik - Vorlesungen über theoretische Physik Band 4 (Dieterich'sche Verlagsbuchhandlung, 1950)
Arnold Sommerfeld, translated from the first German edition by Otto Laporte and Peter A. Moldauer Optics - Lectures on Theoretical Physics Volume IV (Academic Press, 1964)
Arnold Sommerfeld Thermodynamik und Statistik - Vorlesungen über theoretische Physik Band 5 Herausgegeben von Fritz Bopp und Josef Meixner. (Diederich sche Verlagsbuchhandlung, 1952)
Arnold Sommerfeld, edited by F. Bopp and J. Meixner, and translated by J. Kestin Thermodynamics and Statistical Mechanics - Lectures on Theoretical Physics Volume V (Academic Press, 1964)
Arnold Sommerfeld Partielle Differentialgleichungen der Physik - Vorlesungen über theoretische Physik Band 6 (Dieterich'sche Verlagsbuchhandlung, 1947)
Arnold Sommerfeld, translated by Ernest G. Straus Partial Differential Equations in Physics - Lectures on Theoretical Physics Volume VI (Academic Press, 1964)
Felix Klein and Arnold Sommerfeld Über die Theorie des Kreisels [4 volumes] (Teubner, 1897)
