1. Radial characteristic functions, Tech. Report No. 1262, Math. Research Center, University of Wisconsin-Madison;Askey,1973
2. Stieltjes–Pick–Bernstein–Schoenberg and their connection to complete monotonicity;Berg,2008
3. Classes of Compactly Supported Correlation Functions for Multivariate Random Fields, Technical Report;Bevilacqua,2013
4. Dimension walks through Schoenberg measures;Daley;Proc. Amer. Math. Soc.,2013
5. Fonctions Convexes de Pólya;Dugué;Publ. Inst. Statist. Univ. Paris,1955