[1] A. Cayley, “A Memoir on the Theory of Matrices,” Philosophical Transactions of the Royal Society of London, Vol. 148, 1858, pp. 17-37. doi:10.1098/rstl.1858.0002
[2] N. J. Higham, “Functions of Matrices: Theory and Com putation,” Society for Industrial and Applied Mathe matica (SIAM), Philadelphia, 2008.
[3] N. I. Mushkhelishvili, “Singular Integral Equations,” P. Noordhoff Ltd., Holland, 1958.
[4] E. C. Titchmarsh, “Introduction to the Theory of Fourier Integrals,” Chelsea Publishing Company, 1986, Chapter 1.3.