1. Fourier Series and Orthogonal Functions;Davis,1963
2. Generation and use of orthogonal polynomials for data-fitting with a digital computer;Forsythe;J. Soc. Ind. Appl. Math.,1957
3. A first Course in Numerical Analysis;Ralston,1965
4. Generation of orthogonal polynomials for trend surfacing with a digital computer;Spitz,1966