Numerical methods and programming. No.2. Interpolation of functions and best approximations. (Vychislitel’nye metody i programmirovanie. Vyp. 2. Interpolirovanie funktsij i najluchshie priblizheniya.) (Russian) Zbl 0665.41001
Saratov (USSR): Saratovskij Gosudarstvennyj Universitet. 105 p. R. 0.90 (1981).