References
B L van der Waerden
(1973). From matrix mechanics and wave mechanics to unified quantum mechanics. In J. Mehra (Ed.). The physicist's conception of nature (pp. 276-293). Dordrecht: Springer.
(1934). The lawbreaker. Zeitschrift für Sozialforschung, 3 (3), 462-463. https://doi.org/10.5840/zfs19343352.