The isotopic ecology of late Pleistocene mammals in North AmericaPaul L. Koch, S. David Webb, Kathryn A. Hoppe|Chemical Geology|1998Cited by 244
Tracking mammoths and mastodons: Reconstruction of migratory behavior using strontium isotope ratiosKathryn A. Hoppe, S. David Webb, Paul L. Koch et al.|Geology|1999Cited by 237