I. Kh. Akopyan, D. N. Gromov, A. V. Mishchenko, A. E. Monov, B. V. Novikov, M. D. Yaufman, “Excitons in $\mathrm{MAg}_{4}\mathrm{I}_{5}(\mathrm{M}=\mathrm{Rb},\mathrm{K},\mathrm{NH}_{4})$ crystals”, Fizika Tverdogo Tela, 26:9 (1984), 2628–2633
Organisations
Leningrad State University named after A. A. Zhdanova