Menten, Karl M. Max Planck Institute for Radio Astronomy, Max Planck Society;
Chen, C.-H. Rosie Max Planck Institute for Radio Astronomy, Max Planck Society;
Messineo, M., Figer, D. F., Kudritzki, R.-P., Zhu, Q., Menten, K. M., Ivanov, V. D., et al. (2021). New Infrared Spectral Indices of Luminous Cold Stars: From Early K to M Types. \aj, 162(5): 187, pp. 187. doi:10.3847/1538-3881/ac116b.