An Ultra-luminous Quasar at z = 5.363 with a Ten Billion Solar Mass Black Hole and a Metal-rich DLA at z tilde 5

F. Wang, X. Wu, X. Fan, Y. J. and Cai, Z., W. Yi, W. Zuo, R. Wang, M. I.~D. and Ho, L.~C., M. Kim, Q. Yang, B. F. and Jiang, L.