%0 Journal Article %A S. M. Brekhovskikh %A L. M. Landa %A N. I. Chubkina %T Change in the phase composition of sitals under the action of $\gamma$-rays %J Doklady Akademii Nauk %D 1964 %P 938-939 %V 157 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_157_4_a34/ %G ru %F DAN_1964_157_4_a34