%0 Journal Article %A N. A. Vavilov %A E. B. Plotkin %A A. V. Stepanov %T Calculations in Chevalley groups over commutative rings %J Doklady Akademii Nauk %D 1989 %P 788-791 %V 307 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_307_4_a3/ %G ru %F DAN_1989_307_4_a3