%0 Journal Article %A Neil Rickert %T A note on positive definite functions %J Studia Mathematica %D 1970 %P 223-226 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-36-3-223-226/ %R 10.4064/sm-36-3-223-226 %G en %F 10_4064_sm_36_3_223_226