%0 Journal Article
%T Journal of Applied Probability
%J Canadian mathematical bulletin
%D 1964
%P 171-171
%V 7
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S000843950002703X/
%R 10.1017/S000843950002703X
%F 10_1017_S000843950002703X