1. G. Bacciagaluppi, A Valentini, Quantum Theory at the Crossroads: Reconsidering the 1927 Solvay Conference (Univ. Press, Cambridge, 2009)
2. M. Jammer, The Conceptual Development of Quantum Mechanics (McGraw-Hill, New York, 1966)
3. M. Jammer, The Philosophy of Quantum Mechanics: The Interpretations of Quantum Mechanics in Historical Perspective (Wiley, New York, 1974)
4. E. Schrödinger, Zur Einsteinschen Gastheorie. Physik. Zeit. 27, 95–101 (1926)
5. Howard, in Sixty-two Years of Uncertainty, ed. by A.I. Millar (Plenum, New York, 1990)