The spectral line asymmetry of the Doppler effect in relativistic plasmasH. Gossa, M. T. Meftah, K. Chenini, D. E. Zenkhri, B. Amieur and H. GuerridaEPL, 139 2 (2022) 20001DOI: https://doi.org/10.1209/0295-5075/ac3d6d