^T. Purohit; D. Neogy; R.K. Saha (1992). Single crystal magnetic properties and crystal field investigation of Ho(BrO3)3·9H2O. 117(3), 399–404. doi:10.1016/0304-8853(92)90096-7
^Roger E. Gerkin; William J. Reppart. (1987). Structures of holmium bromate enneahydrate at 168 and 294 K and their implications for the isomorphic series of rare-earth bromate enneahydrates. , 43(4), 623–631. doi:10.1107/s0108270187094757