%0 Journal Article
%A V. V. Filippov
%T Families of changes of variables and a uniqueness theorem for
%J Doklady Akademii Nauk
%D 1993
%P 704-706
%V 330
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_330_6_a8/
%G ru
%F DAN_1993_330_6_a8