Fluctuations of non-ergodic stochastic processes G. George, L. Klochko, A. N. Semenov, J. Baschnagel and J. P. Wittmer Eur. Phys. J. E, 44 4 (2021) 54 Published online: 18 April 2021 DOI: 10.1140/epje/s10189-021-00070-5