MAUGIN, G. A. On phase, action and canonical conservation laws in kinematic-wave theory. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 34, n. 7, p. 721–724, 2008. DOI: 10.1063/1.2957010. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f34-0721e. Acesso em: 23 лис. 2024.