References
- Orthogonal polynomials in two variables and second order partial differential equations Y. J. Kim;K. H. Kwon;J. K. Lee
- Ann. Mat. Pura Appl. seri 4 v.76 Orthogonal polynomials in two variables H. L. Krall;I. M. Sheffer
- Orthogonality and Rodrigues formula of circle polynomials Jeong K. Lee
- Soviet Math. Dolk. v.43 Orthogonal polynomials in several variables A. S. Liskova
- SIAM J. Math. Anal. v.24 On multivariate orthogonal polynomials Y. Xu
- Common zeros of polynomials in several variables and higher dimensional quadrature Y. Xu