%0 Journal Article %T News and Notices %J Applications of Mathematics %D 1962 %P 170 %V 7 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1962.102798/ %R 10.21136/AM.1962.102798 %G cs %F 10_21136_AM_1962_102798