%0 Journal Article %A L. Sh. Grigoryan %A G. S. Sahakyan %T On the presence of $\pi^-$-mesons in heavy atomic nuclei %J Doklady Akademii Nauk %D 1977 %P 299-302 %V 237 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1977_237_2_a11/ %G ru %F DAN_1977_237_2_a11