%0 Journal Article
%A T. Constantinescu
%T Some Aspects of Nonstationarity. II
%J Mathematica balkanica
%D 1990
%P 211
%V 4
%N 3-4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_1990_4_3-4_a1/
%F MABA_1990_4_3-4_a1