AKAY SEFER , O. .; YURTSEVEN , H. . Temperature dependence of the order parameter and dielectric susceptibility for the ferroelectric– incommensurate–paraelectric phase transitions in NaNO₂. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 52, n. 3, p. 314–325, 2026. DOI: 10.1063/10.0042665. Disponível em: https://fnt.ilt.kharkov.ua/index.php/fnt/article/view/9658. Acesso em: 26 бер. 2026.