Oxygen isotope variation in the tusks of extinct proboscideans: A measure of season of death and seasonalityPaul L. Koch, David L. Dettman, Daniel C. Fisher|Geology|1989Cited by 269
Stable isotope stratigraphy and paleoclimatology of the Paleogene Bighorn Basin (Wyoming, USA)Paul L. Koch, David L. Dettman, James C. Zachos|Palaeogeography Palaeoclimatology Palaeoecology|1995Cited by 253