Bibliography
- Apostol, T (1974), Mathematical analysis, Addison-Wesley, ISBN 978-0-201-00288-1.
- Apostol, T (1967), Calculus, Vol. 1 (2nd ed.), Jon Wiley & Sons.
- Autar Kaw, Egwu Kalu (2008), Numerical Methods with Applications (1st ed.), autarkaw.com, http://numericalmethods.eng.usf.edu/topics/textbook_index.html
- Titchmarsh, E (1948), Introduction to the theory of Fourier integrals (2nd ed.), New York, N.Y.: Chelsea Pub. Co. (published 1986), ISBN 978-0-8284-0324-5.
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