ZVYAGIN, S. Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article). ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 38, n. 9, p. 1032–1040, 2012. DOI: 10.1063/1.4752094. Disponível em: http://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f38-1032e. Acesso em: 4 трав. 2024.