1. Dual equations and classical orthogonal polynomials;Richard;J. Math. Anal. Appl.,1968
2. Some dual series equations involving Laguerre polynomials;Lowndes John;Pacific J. Math.,1968
3. Some dual series equations involving Jacobi polynomials;Noble,1963
4. Dual series relations—I: Dual relations involving Fourier-Bessel series;Sneddon,1964
5. A note on certain dual series equations involving Laguerre polynomials;Srivastava;Pacific J. Math.,1969