Stuart Fiedal, Sudden deaths: The chronology of terminal Pleistocene megafaunal extinction, in Gary Haynes (a cura di), American Megafaunal Extinctions at the End of the Pleistocene, Springer, 2009, pp. 21–37, DOI:10.1007/978-1-4020-8793-6_2, ISBN978-1-4020-8792-9.