%0 Journal Article %T News and Notices %J Czechoslovak Mathematical Journal %D 1965 %P 474-477 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1965.100687/ %R 10.21136/CMJ.1965.100687 %G en %F 10_21136_CMJ_1965_100687