1. Abramowitz, M., Stegun, I.A.: Handbook of Mathematical Functions. N.B.S. Appl. Math. Ser. No. 55, Washington D.C., 1964
2. Abu-Shumays, I.K., Bareiss, E.H.: Adjoining appropriate singular elements to transport theory computations. J. Math. Anal. Appl.48, 200?222 (1974)
3. Atkinson, K.E.: A survey of numerical methods for the solution of Fredholm integral equations of the second kind. Philadelphia: SIAM 1976
4. Baker, C.T.H.: The numerical treatment of integral equations. Oxford: Clarendon Press 1977
5. Bell, G.I., Glasstone, S.: Nuclear reactor theory. New York: Van Nostrand Reinhold Company 1970