Authors: Graham, IJ Morgans, HEG Waghorn, DB Trotter, JA Whitford, DJ

Citation: Ij. Graham et al., Strontium isotope stratigraphy of the Oligocene-Miocene Otekaike Limestone(Trig Z section) in southern New Zealand: age of the Duntroonian/WaitakianStage boundary, NZ J GEOL, 43(3), 2000, pp. 335-347