1. The Principles of Quantum Mechanics, 4th ed. (Clarendon, Oxford, 1958).
2. Advanced Quantum Chemistry (Addison-Wesley, Reading, Mass., 1965).
3. and Relativistic Quantum Mechanics (McGraw-Hill, New York, 1964).
4. Conditional probability amplitudes in wave mechanics
5. Non-adiabatic potentials for H2+