BULIKUNZIRA SYLVESTRE. Lagrange Formalism for Electromagnetic Field in Terms of Complex Isotropic Vectors. International Journal of Mathematics And its Applications, [S. l.], v. 3, n. 4 - B, p. 17–21, 2015. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/492. Acesso em: 17 may. 2024.