Chastain, Matthew L., Deymier-Black, Alix C., Kelly, John E., Brown, James A. et Dunand, David C., « Metallurgical analysis of copper artifacts from Cahokia », Journal of Archaeological Science, vol. 38, no 7, , p. 1727–1736 (DOI10.1016/j.jas.2011.03.004, Bibcode2011JArSc..38.1727C)
Chastain, Matthew L., Deymier-Black, Alix C., Kelly, John E., Brown, James A. et Dunand, David C., « Metallurgical analysis of copper artifacts from Cahokia », Journal of Archaeological Science, vol. 38, no 7, , p. 1727–1736 (DOI10.1016/j.jas.2011.03.004, Bibcode2011JArSc..38.1727C)