N. V. Starostin, N. I. Ulitskii, B. M. Kharlamov, R. I. Shekhmamet'ev, “Absorption lines of reverse hydrogen series in $\mathrm{BiI}_{3}$ crystals in strong magnetic fields”, Fizika Tverdogo Tela, 26:5 (1984), 1354–1357
Organisations
Leningrad State University named after A. A. Zhdanova