Zavorotnev Ю. Д.; Medvedeva Л. И. Long-period incommensurate structures in crystals with triangular arrangement of magnetic ions. FIZYKA NYZKYKH TEMPERATUR, Харків, Україна, v. 25, n. 6, p. 567–574, 1999. DOI: 10.1063/1.593760. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f25-0567r. Acesso em: 20 may. 2024.