%0 Journal Article %A V. Pták %T On theorem of W.F. Eberlein %J Studia Mathematica %D 1953 %P 272-275 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-14-2-272-275/ %R 10.4064/sm-14-2-272-275 %G de %F 10_4064_sm_14_2_272_275