Doumani, P. N., M. D. Frachetti, R. Beardmore, T. Schmaus, R. N. Spengler, and A. N. Mar’yashev 2015. Burial ritual, agriculture, and craft production among Bronze Age pastoralists at Tasbas (Kazakhstan). Archaeological Research in Asia 1-2: 17–32. Peer-reviewed.
Frachetti, Michael D., Robert N. Spengler III, Gayle J. Fritz, and Alexei N. Mar’yashev. 2010. Earliest Direct Evidence for Broomcorn Millet and Wheat in the Central Eurasian Steppe Region. Antiquity 84:993-1010. Peer-reviewed.