Initial fluctuations and power spectrum of flow anisotropies in relativistic heavy-ion collisionsShreyansh S. Dave, P. S. Saumia and Ajit M. SrivastavaEur. Phys. J. Spec. Top., 230 3 (2021) 673-688DOI: https://doi.org/10.1140/epjs/s11734-021-00021-3