%0 Journal Article
%A B. V. Rusanov
%T Functionally invariant solutions of second-order equations
%J Doklady Akademii Nauk
%D 1965
%P 534-537
%V 161
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1965_161_3_a9/
%G ru
%F DAN_1965_161_3_a9