%0 Journal Article
%A Phan, T.
%A Natividade, M.
%T Clinic obstructions and clinic cohomological groups.
%J Portugaliae mathematica
%D 1999
%P 381-387
%V 56
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1999__56_4_49027/
%G en
%F PORMA_1999__56_4_49027