Ley-Koo, E. “Electrostatic, Magnetostatic and Electromagnetic Fields for Harmonically Distributed Sources on Infinite Planes”. Revista Mexicana De Física E, vol. 50, no. 2 Jul-Dec, Jan. 2004, pp. 132-9, https://rmf.smf.mx/ojs/index.php/rmf-e/article/view/4474.