%0 Journal Article %T News and Notices %J Czechoslovak Mathematical Journal %D 1965 %P 161-168 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1965.100658/ %R 10.21136/CMJ.1965.100658 %G en %F 10_21136_CMJ_1965_100658