HOFFMAN, K.; LOCKWOOD, D.; YEN, W. Circular dichroism and Raman optical activity in antiferromagnetic transition metal fluorides. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 31, n. 8-9, p. 1032–1041, 2005. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f31-1032e. Acesso em: 10 лис. 2025.