%0 Journal Article
%A V. S. Mel'nik
%T Extremal problems for superposition functionals
%J Doklady Akademii Nauk
%D 1993
%P 701-704
%V 329
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_329_6_a2/
%G ru
%F DAN_1993_329_6_a2