Stability of Schwarzschild (Anti)de Sitter black holes in conformal gravity Daniele Lanteri, Shen-Song Wan, Alfredo Iorio and Paolo Castorina Eur. Phys. J. C, 81 7 (2021) 576 Published online: 03 July 2021 DOI: 10.1140/epjc/s10052-021-09368-2