1. Gruppentheorie und Quantenmechanik (S. Hirzel Verlag, Leipzig, 1928)
2. [translation, Theory of Groups and Quantum Mechanics (Dover, New York, 1950)].
3. Gruppentheorie and ihre Anwendung auf die Quantenmechanik der Atomspectren (Friedr. Vieweg and Sohn, Brunswick, 1931)
4. [translation, Group Theory (Academic, New York, 1950)].
5. in Theoretical Chemistry: Advances and Perspectives, and Eds. (Academic, New York, 1976), Vol. 2, p. 131.