Weng C.Y, Bush M.B, Curtis J.H, Kolata A.L, Dillehay T.D, Binford M.W.  2006.  Deglaciation and Holocene climate change in the western Peruvian Andes. Quaternary Research. 66(1):87-96.

Binford M.W, Kolata A.L, Brenner M., Janusek J.W, Seddon M.T, Abbott M., Curtis J.H.  1997.  Climate variation and the rise and fall of an Andean civilization. Quaternary Research. 47(2):235-248.