1. Wikipedia. The free encyclopedia, Quantum Mechanics. Available from:
2. Wikipedia. The free encyclopedia, Uncertainty Principle. Available from:
3. Wikipedia. The free encyclopedia, Quantum Harmonic Oscillator. Available from:
4. Griffiths DJ. . 2nd ed. New Jersey, United States: Prentice Hall; 2004
5. Liboff RL. Introductory Quantum Mechanics. Boston, United States: Addison–Wesley; 2002