%0 Journal Article
%A Mónica Clapp
%A Luis Montejano
%T Lusternik-Schnirelmann category and minimal coverings with contractible sets.
%J Manuscripta mathematica
%D 1987
%P 37-46
%V 58
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1987__58_155209/
%F MM2_1987__58_155209