Dokl. Akad. Nauk SSSR, 1989 Volume 305, Number 2,Pages 347–350(Mi dan48530)
PHYSICS
Influence of the tetragonal compression of lattice on the luminescent properties of the $\mathrm{A}^\mathrm{II}\mathrm{B}_2^\mathrm{III}\mathrm{C}_4^\mathrm{VI}$ compounds