Westgate, John A., Pearce, G. W., Preece, Shari J., Schweger, Charles E., Morlan, Richard E., Pearce, Nicholas J. G., and Perkins, T. W., 2013, Tephrochronology, magnetostratigraphy and mammalian faunas of Middle and Early Pleistocene sediments at two sites on the Old Crow River, northern Yukon Territory, Canada: Quaternary Research, v. 79, no. 1, p. 75-85.