Körp\i nar, T., and R. Demirkol. “Energy on a Timelike Particle in Dynamical and Electrodynamical Force Fields in De-Sitter Space”. Revista Mexicana De Física, vol. 63, no. 6 Nov-Dec, Jan. 2017, pp. 560-0, https://rmf.smf.mx/ojs/index.php/rmf/article/view/381.