Instability of Black Holes with a Gauss–Bonnet TermWha-Keun Ahn, Bogeun Gwak, Bum-Hoon Lee and Wonwoo LeeEur. Phys. J. C, 75 8 (2015) 372DOI: https://doi.org/10.1140/epjc/s10052-015-3568-5