%0 Journal Article %T News and Notices %J Czechoslovak Mathematical Journal %D 1968 %P 388 %V 18 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100838/ %R 10.21136/CMJ.1968.100838 %G en %F 10_21136_CMJ_1968_100838