%0 Journal Article %T News and Notices %J Applications of Mathematics %D 1979 %P 160 %V 24 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1979.103791/ %R 10.21136/AM.1979.103791 %G cs %F 10_21136_AM_1979_103791