PETRONILO, G. X. A.; ULHOA, S. C.; SANTANA, A. E. Symplectic Field Theory of the Galilean Covariant Scalar and Spinor Representations. Ukrainian Journal of Physics, [S. l.], v. 64, n. 8, p. 719, 2019. DOI: 10.15407/ujpe64.8.719. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019421. Acesso em: 25 oct. 2021.