%0 Journal Article %A Vanžura, Jiří %T Remark on involutive subspaces and regular bases %J Czechoslovak Mathematical Journal %D 1969 %P 515-517 %V 19 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100918/ %R 10.21136/CMJ.1969.100918 %G en %F 10_21136_CMJ_1969_100918