SUPRUNENKO, Y.; GORBAR, E.; SHARAPOV, S.; LOKTEV, V. Effect of next-to-nearest neighbor hopping on electronic properties of graphene: Graphene and graphite multilayers. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 34, n. 10, p. 1033–1039, 2008. DOI: 10.1063/1.2981394. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f34-1033e. Acesso em: 28 квіт. 2024.