BÁRDI, I. ELECTROMAGNETIC FIELD OF COUPLED CONDUCTORS BY VARIATIONAL CALCULUS. Periodica Polytechnica Electrical Engineering, [S. l.], v. 25, n. 4, p. 249–264, 1981. Disponível em: https://pp.bme.hu/ee/article/view/4786. Acesso em: 19 may. 2024.