%0 Journal Article
%A B. Węglorz
%T Some preservation theorems
%J Colloquium Mathematicum
%D 1967
%P 269-276
%V 17
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-17-2-269-276/
%R 10.4064/cm-17-2-269-276
%G en
%F 10_4064_cm_17_2_269_276