Z. A. Kazei, I. A. Zobkalo, “On critical concentration of cooperative Jahn-Teller effect in $\mathrm{Ca}_{3}\mathrm{Mn}_{2x}\mathrm{Ga}_{2(1-x)}\mathrm{Ge}_{3}\mathrm{O}_{12}$ garnets”, Fizika Tverdogo Tela, 25:6 (1983), 1636–1639
Organisations
B. P. Konstantinov Leningrad Nuclear Physics Institute of the USSR Academy of Sciences