%0 Journal Article %T News and Notices %J Applications of Mathematics %D 1976 %P 316 %V 21 %N 4 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1976.103652/ %R 10.21136/AM.1976.103652 %G cs %F 10_21136_AM_1976_103652