%0 Journal Article
%A L. V. Ovsyannikov
%T On differential invariants of a local Lie group of transformations
%J Doklady Akademii Nauk
%D 1975
%P 1291-1294
%V 222
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_222_6_a7/
%G ru
%F DAN_1975_222_6_a7