Craig, Nathan; Speakman, Robert Jeff; Popelka-Filcoff, Rachel S.; Aldenderfer, Mark S.; Blanco, Luis Flores; Vega, Margaret Brown; Glascock, Michael D.; Stanish, Charles(2010)
Grebennikov, Andrei V.; Popov, Vladimir K.; Glascock, Michael D.; Speakman, Robert Jeff; Kuzmin, Yaroslav V.; Ptashinsky, Andrei V.(Archaeopress, 2010)
Farris, David W.; Jaramillo, Carlos A.; Bayona, German; Restrepo-Moreno, Sergio A.; Montes, Camilo; Cardona, Agustin; Mora, Andres; Speakman, Robert Jeff; Glascock, Michael D.; Valencia, Victor(2011)