Ley-Koo, E., Esparza-López, C. and Torres-Bustamante, H. (2018) “Exact solutions for electromagnetic fields inside and outside a spherical surface with magnetic/electric dipole distributed sources”, Revista Mexicana de Física E, 64(2 Jul-Dec), pp. 139–148. doi: 10.31349/RevMexFisE.64.139.