Gakh, G., M. Konchatnij, and N. Merenkov. “Model-Independent Radiative Corrections to Elastic Proton-Electron Scattering”. Ukrainian Journal of Physics 62, no. 1 (December 23, 2018): 3. Accessed July 11, 2020. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018721.