(EN) S. W. Beresford e J. W. Cole, Kaingaroa Ignimbrite, Taupo Volcanic Zone, New Zealand: Evidence for asymmetric caldera subsidence of the Reporoa Caldera (abstract), in New Zealand Journal of Geology and Geophysics, vol. 43, n. 3, 2000-09, pp. 471–481, DOI:10.1080/00288306.2000.9514903. URL consultato il 16 ottobre 2018.
(EN) S. W. Beresford e J. W. Cole, Kaingaroa Ignimbrite, Taupo Volcanic Zone, New Zealand: Evidence for asymmetric caldera subsidence of the Reporoa Caldera (abstract), in New Zealand Journal of Geology and Geophysics, vol. 43, n. 3, 2000-09, pp. 471–481, DOI:10.1080/00288306.2000.9514903. URL consultato il 16 ottobre 2018.