%0 Journal Article %A Yu. L. Sachkov %A E. F. Sachkova %T Carnot Algebras and Sub-Riemannian Structures with Growth Vector (2,$\,$3,$\,$5,$\,$6) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2021 %P 237-246 %V 315 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2021_315_a16/ %G ru %F TM_2021_315_a16