%0 Journal Article %T Summaries of articles published in this issue %J Czechoslovak Mathematical Journal %D 1967 %P 471-474 %V 17 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100793/ %R 10.21136/CMJ.1967.100793 %G en %F 10_21136_CMJ_1967_100793