VEGT, W. . The 4-Dimensional Dirac Equation in Relativistic Field Theory. European Journal of Applied Sciences, [S. l.], v. 9, n. 1, p. 35–93, 2021. DOI: 10.14738/aivp.91.9403. Disponível em: https://journals.scholarpublishing.org/index.php/AIVP/article/view/9403. Acesso em: 19 jul. 2024.