1. The theory and application of the Padé approximant method;Baker,1965
2. Introduction to Approximation Theory;Cheney,1966
3. Tchebycheff Systems: With Applications in Analysis and Statistics;Karlin,1966
4. The ideas of P. L. Chebysev and A. A. Markov in the theory of limiting values of integrals and their further development;Krein;Usp. Mat. Nauk (N.S.),1951