1. H. Laue,Found. Phys. 8, 1 (1977).
2. M. Jammer,The Philosophy of Quantum Mechanics (Wiley, New York, 1974).
3. J. M. Jauch,Foundations of Quantum Mechanics (Addison-Wesley, New York, 1968).
4. R. H. Dicke and J. P. Wittke,Introduction to Quantum Mechanics (Addison-Wesley, Reading, Massachusetts, 1960).
5. A. Messiah,Quantum Mechanics, Vol. 1 (Wiley, New York, 1966).