CHAUS , N. N. On density and flow of energy in nonrelativistic quantum mechanics . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 8, p. 1090–1095, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8038. Acesso em: 5 dec. 2025.