MACHULIN, V.; MOTSNYI, F.; PERESH, E.; SMOLANKA, O.; SVECHNIKOV, G. Effect of temperature variation on shift and broadening of exciton band in Cs₃Bi₂I₉ layered crystals. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 30, n. 12, p. 1283–1286, 2004. DOI: 10.1063/1.1820036. Disponível em: https://fnt.ilt.kharkov.ua/index.php/fnt/article/view/f30-1283e. Acesso em: 3 трав. 2024.