%0 Journal Article
%A John Baildon
%T Euler characteristics of 2-manifolds and light open maps
%J Fundamenta Mathematicae
%D 1975
%P 261-268
%V 90
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-90-3-261-268/
%R 10.4064/fm-90-3-261-268
%G en
%F 10_4064_fm_90_3_261_268