Gutiérrez-Ruiz, A. F., L. A. Pachón, and C. A. Valenzuela-Toledo. “Innermost Stable Circular Orbits and Epicyclic Frequencies Around a Magnetized Neutron Star”. Universitas Scientiarum, vol. 19, no. 1, Dec. 2013, pp. 63-73, doi:10.11144/Javeriana.SC19-1.isco.