%0 Journal Article
%A Alfonso Castro
%A Alexandra Kurepa
%T Energy Analysis Of A Nonliner Singular Differential Equations And Applications.
%J Revista colombiana de matematicas
%D 1987
%P 155-166
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RCM_1987__21_1_181788/
%F RCM_1987__21_1_181788