IVANCHENKO, V. M. Application of Potential and Vortex Fields to the Description of Gravitation and Electromagnetism. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 1, p. 31–50, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3726. Acesso em: 27 apr. 2025.