González-Villanueva, A., H. Núñez-Yépez, ., and A. Salas-Brito. “The Coulomb Problem and Rutherford Scattering Using the Hamilton Vector”. Revista Mexicana De Física, vol. 44, no. 2, Jan. 1998, pp. 183-9, https://rmf.smf.mx/ojs/index.php/rmf/article/view/2755.