Stadnyk В.; Romanyuk М.; Brezvin Р. A New LiNH4SO4 Crystal with an Isotropic Point. Ukrainian Journal of Physics, [S. l.], v. 57, n. 12, p. 1231, 2012. DOI: 10.15407/ujpe57.12.1231. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2021129. Acesso em: 16 oct. 2024.