1. Orthogonal Polynomials and Special Functions;Askey,1975
2. Positive definite kernels on homogeneous spaces and certain stochastic processes related to Lévy's Brownian motion of several parameters;Gangolli;Ann. Inst. H. Poincaré Sect. B (N.S.),1967
3. Radon Transforms and the Rigidity of the Grassmannians;Gasqui,2004
4. Strictly and non-strictly positive definite functions on spheres;Gneiting;Bernoulli,2013
5. Two-point homogeneous spaces;Hsien-Chung;Ann. of Math.,1952