%0 Journal Article %A V. V. Kozlov %T Tensor invariants and integration of differential equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2019 %P 111-140 %V 74 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2019_74_1_a2/ %G en %F RM_2019_74_1_a2