%0 Journal Article %A S. D. Ăˆidel'man %A F. O. Porper %T An investigation of the behavior of $L_2$-norms of the solutions of strongly parabolic systems with dissipation %J Izvestiya. Mathematics %D 1973 %P 675-689 %V 7 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1973_7_3_a11/ %G en %F IM2_1973_7_3_a11