Accretion disks around the Gibbons–Maeda–Garfinkle–Horowitz–Strominger charged black holes R. Kh. Karimov, R. N. Izmailov, Amrita Bhattacharya and K. K. Nandi Eur. Phys. J. C, 78 9 (2018) 788 Published online: 27 September 2018 DOI: 10.1140/epjc/s10052-018-6270-6