%0 Journal Article
%A G. T. Apoyan
%T Parameter estimation of undifferentiable trend coefficient
%J Proceedings of the Yerevan State University. Physical and mathematical sciences
%D 1986
%P 33-42
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZERU_1986_1_a4/
%G ru
%F UZERU_1986_1_a4