%0 Journal Article
%A N. V. Stepanov
%T Joint invariants of two families of curves on the plane
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1969
%P 299-331
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1969_2_a13/
%G ru
%F INTG_1969_2_a13