%0 Journal Article %A A. Yu. Luzgarev %T On overgroups of $\mathrm{E}(\mathrm{E}_6,R)$ and $\mathrm{E}(\mathrm{E}_7,R)$ in their %J Zapiski Nauchnykh Seminarov POMI %D 2004 %P 216-243 %V 319 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2004_319_a6/ %G ru %F ZNSL_2004_319_a6