1. Time Series: Data Analysis and Theory;Brillinger,1975
2. Time Series: Theory and Methods;Brockwell,1987
3. Fourier Analysis and Approximation, Vol. I;Butzer,1971
4. Linearization of the Product of Jacobi Polynomials;Gasper;I, Can. J. Math.,1970
5. Positive Sums of the Classical Orthogonal Polynomials;Gasper;SIAM. J. Math. Anal.,1977