1. Die Gruppentheoretische Methode in der Quantenmechanik Springer-Verlag, Berlin, (1932).
2. Gruppentheorie und ihre Anwendung auf die Quantenmechanik der Atomspektren Vieweg, Braunschweig, 1931, translated by J. J. Griffin: Group Theory and Its Application to the Quantum Mechanics of Atomic Spectra Academic Press, New York, (1959).
3. On the Matrices Which Reduce the Kronecker Products of Representations of S. R. Groups, unpublished manuscript 1940;
4. later published in and Eds., Quantum Theory of Angular Momentum Academic Press, New York, 1965, pp. 87-133.
5. Theory of Complex Spectra. II