1. Notes on the Localization of Generalized Hexagonal Cellular Networks
2. Jolly, W. L. Modern Inorganic Chemistry, 2nd ed. MacGraw-Hill: New York, 1991; p 635.
3. Housecroft, C. E., Sharpe, A. G. Inorganic Chemistry, 2nd ed. Pearson/Prentice Hall: Hoboken, NJ, 2005; p 905.
4. Myerscough, P.B. Nuclear Power Generation (Third ed.) Incorporating Modern Power System Practice; British Electricity International; 1992, pp 1–110.