1. Richard Bellman, Introduction to Matrix Analysis, 2nd ed., McGraw-Hill, New York, 1970.
2. Richard E. Blahut, Theory and Practice of Error Control Codes, Addison Wesley, Reading, Mass., 1983.
3. Gene H. Golub and Charles F. Van Loan, Matrix Computation, Johns Hopkins Univ. Press, Baltimore, 1983, pp. 119–124.
4. Vera Pless, Introduction to the Theory of Error-Correcting Codes, John Wiley, New York, 1982.