TY - JOUR AU - Mourad E. H. Ismail AU - Ruiming Zhang TI - Classes of Bivariate Orthogonal Polynomials JO - Symmetry, integrability and geometry: methods and applications PY - 2016 VL - 12 UR - http://geodesic.mathdoc.fr/item/SIGMA_2016_12_a20/ LA - en ID - SIGMA_2016_12_a20 ER -