A note on “Electron self-energy in logarithmic electrodynamics” by P. Gaete and J. Helayël-Neto Dmitry M. Gitman and Anatoly E. Shabad Eur. Phys. J. C, 74 11 (2014) 3186 Published online: 28 November 2014 DOI: 10.1140/epjc/s10052-014-3186-7