1. W. Heisenberg,Der Teil und das Ganze (Piper, München, 1969), p. 103, attributed to A. Einstein.
2. C. Piron,Foundations of Quantum Physics (Benjamin, Reading, Mass., 1976); J. M. Jauch,Foundations of Quantum Mechanics (Addison-Wesley, Reading, Mass., 1968); G. Ludwig,Deutung des Begriffs ?physikalische Theorie? und axiomatische Grundlegung der Hilbertraumstruktur der Quantenmechanik durch Hauptsätze des Messens (Springer, Berlin, 1970).
3. M. Jammer,The Philosophy of Quantum Mechanics (Wiley, New York, 1974); B. d'Espagnat,Conceptual Foundations of Quantum Mechanics, 2nd ed. (Benjamin, Reading, Mass., 1976); B. d'Espagnat, ed.,Foundations of Quantum Mechanics (Proc. Int. School of Physics ?Enrico Fermi,? Course 49) (Academic Press, New York, 1971); J. Bub,The Interpretation of Quantum Mechanics (Reidel, Dordrecht, 1974); J. Mehra,The Quantum Principle: Its Interpretation and Epistemology (Reidel, Dordrecht, 1974); C. A. Hooker, ed.,Contemporary Research in the Foundations and Philosophy of Quantum Theory (Reidel, Dordrecht, 1973); T. Bastin, ed.,Quantum Theory and Beyond (Cambridge Univ. Press, Cambridge, 1971).
4. J. von Neumann,Mathematical Foundations of Quantum Mechanics (Princeton Univ. Press, Princeton, N.J., 1955); see also F. London and E. Bauer,La théorie de l'observation en méchanique quantique (Hermann, Paris, 1939).
5. H. Margenau,The Nature of Physical Reality (McGraw-Hill, New York, 1950);Phil. of Science 30, 138 (1963).