1. Babenko K.I. Theoretical Foundations and Construction of Numerical Algorithms for Problems of Mathematical Physics (Nauka, Moscow, 1979) [in Russian].
2. Nakhushev A.M. "An Approximate Method for Solving Boundary Value Problems for Differential Equations and its Application to the Dynamics of Ground Moisture and Ground Water", Differentsial'nye Uravneniya 18 (1), 72-81 (1982) [in Russian].
3. Nakhushev A.M. Equations of Mathematical Biology (Vysshaya Shkola, Moscow, 1995) [in Russian].
4. Boichuk A.A., Samoilenko A.M. Generalized Inverse Operators and Fredholm Boundary-value Problems (VSP, Utrecht–Boston, 2004).
5. Brunner H. Collocation Methods for Volterra Integral
and Related functional Equations (Cambridge Univ. Press, London, 2004).