1. “These data are consistent with deposits of hydrogen in the form of water ice that are covered by as much as 40 centimeters of desiccated regolith within permanently shaded craters near both poles,” W. C. Feldman et al., “Fluxes of Fast and Epithermal Neutrons from Lunar Prospector: Evidence for Water Ice at the lunar Poles,” Science, Vol. 281, 4 September 1998, p. 1489.
2. “... how could [the ice deposits] have remained there for so long, given that they are in sunlight?” Ian Garrick-Bethell, “Signs of a Wandering Moon,” Nature, Vol. 531, 24 March 2016, p. 456.
3. See Endnote 153 on page 432.
4. M. A. Siegler et al., “Lunar True Polar Wander Inferred from Polar Hydrogen,” Nature, Vol. 531, 24 March 2016, pp. 480–484.
5. “Furthermore, one might expect ice palaeopoles to have formed everywhere along this polar-wander path, raising the question of why they are found only at the locations observed in the current study.” Garrick-Bethell, p. 456.