THE FUNDAMENTAL PROPERTIES OF TOROIDAL CURRENT STRUCTURES. . EPH-International Journal of Applied Science, [S. l.], v. 3, n. 3, p. 11–15, 2017. DOI: 10.53555/eijas.v3i3.49. Disponível em: http://eijas.com/index.php/as/article/view/49. Acesso em: 16 sep. 2025.