The paper “Relativistic generalization of formation and ion-reflection conditions in electrostatic shocks” by Anne Stockem et al. (2013) was published in Physical Review E, vol. 87, p. 043116. In this paper, we generalize the model for electrostatic shock formation for relativistic electron temperatures and discuss the effects of a non-zero ion temperature on the reflection condition. We find that, due to the relativistic effects, the ions are reflected with lower energies. More information and the full text of the paper can be found here.