EFIMOV, V. B.; KOLMAKOV, G. V.; KULIEV, A. S.; MEZHOV-DEGLIN, L. P. Propagation of short, nonlinear, second-sound pulses through He-II in one- and three-dimensional geometry. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 24, n. 2, p. 116–121, 1998. DOI: 10.1063/1.593543. Disponível em: https://fnt.ilt.kharkov.ua/index.php/fnt/article/view/f24-0116e. Acesso em: 4 груд. 2024.