%0 Journal Article
%A W. Słowikowski
%T A theory of extensions of map-systems I
%J Fundamenta Mathematicae
%D 1958
%P 243-275
%V 46
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-46-3-243-275/
%R 10.4064/fm-46-3-243-275
%G en
%F 10_4064_fm_46_3_243_275