Gupta, A. K., & Kabe, D. G. (2003). ON A ZONAL POLYNOMIAL INTEGRAL. Journal of Applied Mathematics, 2003(), 569-573. https://doi.org/10.1155/S1110757X03209074
DUTTA, M., & MANOCHA, K. P. (1983). A CLASS OF ORTHOGONAL POLYNOMIALS OF A NEW TYPE. International Journal of Mathematics and Mathematical Sciences, 1983(), 171-180. https://doi.org/10.1155/S0161171283000150
NODARSE, R. Á., ARVESÚ, J., & MARCELLÁN, F. (2004). ON THE KRALL-TYPE POLYNOMIALS. Journal of Applied Mathematics, 2004(), 359-369. https://doi.org/10.1155/S1110757X04312076