%0 Journal Article %A V. N. Tyutyanov %T Product of two solvable subgroups of 3' index %J Problemy fiziki, matematiki i tehniki %D 2012 %P 70-73 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PFMT_2012_4_a13/ %G ru %F PFMT_2012_4_a13