%0 Journal Article
%A Vangelis Th. Paschos
%T Studying graph - stability to apprehend relative hardness of constructive-non-constructive approximation
%J Μαθηματική Επιθεώρηση

%D 1995
%P 37-54
%V 43
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MR_1995__43_a1/
%G gr
%F MR_1995__43_a1