1. J. H. Wilkinson, The Algebraic Eigenvalue Problem, Oxford University Press, Inc., London, 1965.
2. V. N. Faddeeva, Computational Methods of Linear Algebra, Dover Publications, Inc., New York, N.Y., 1959.
3. B. Noble, Applied Linear Algebra, Prentice-Hall, Inc., Englewood Cliffs, N.J., 1969.
4. C. E. Froberg, Introduction to Numerical Analysis, Addison-Wesley Publishing Company, Inc., Reading, Mass., 1969.
5. C. Lanczos, Applied Analysis, Prentice-Hall, Inc., Englewood Cliffs, N.J., 1956.