Accessed on line September 26, 2007. pp. 180, Quantum Mechanics, B. K. Agarwal and Hari Prakash, New Delhi: Prentice-Hall of India Private Ltd., 1997.
Пристапено на линија септември 26, 2007. pp. 180, Quantum Mechanics, B. K. Agarwal and Hari Prakash, New Delhi: Prentice-Hall of India Private Ltd., 1997. .