%0 Journal Article %T Summaries of articles published in this issue %J Czechoslovak Mathematical Journal %D 1973 %P 349 %V 23 %N 2 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1973.101173/ %R 10.21136/CMJ.1973.101173 %G en %F 10_21136_CMJ_1973_101173