Myers, A. D., Wang, F., Yang, J., Fan, X., Wu, X., Yue, M., …Nunez, E. H. (2019). Exploring Reionization-era Quasars. III. Discovery of 16 Quasars at 6.4 ≲ z ≲ 6.9 with DESI Legacy Imaging Surveys and the UKIRT Hemisphere Survey and Quasar Luminosity Function at z ∼ 6.7. Astrophysical Journal, 884(1), Article 30. https://doi.org/10.3847/1538-4357/ab2be5