Thin accretion disks around rotating black holes in 4D Einstein–Gauss–Bonnet gravity Mohaddese Heydari-Fard, Malihe Heydari-Fard and Hamid Reza Sepangi Eur. Phys. J. C, 81 5 (2021) 473 Published online: 29 May 2021 DOI: 10.1140/epjc/s10052-021-09266-7