Ment K, Dittmann JA, Astudillo-Defru N, Charbonneau D, Irwin J, Bonfils X, Murgas F, Almenara J-M, Forveille T, Agol E, et al. A Second Terrestrial Planet Orbiting the Nearby M Dwarf LHS 1140. \aj. 2019;157 (1) :32.