%0 Journal Article
%A Yu. M. Voloshin
%T ``Up-down'' sequences and ordered trees
%J Doklady Akademii Nauk
%D 1993
%P 125-127
%V 329
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_329_2_a2/
%G ru
%F DAN_1993_329_2_a2