Douka, K., Higham, T., Sinitsyn, A., & Quaternary Research Center, U. o. W. (2010). The influence of pretreatment chemistry on the radiocarbon dating of Campanian Ignimbrite-aged charcoal from Kostenki 14 (Russia). Elsevier.

Douka, K., T. Higham, A. Sinitsyn, and University of Washington Quaternary Research Center. The Influence of Pretreatment Chemistry on the Radiocarbon Dating of Campanian Ignimbrite-aged Charcoal from Kostenki 14 (Russia). Elsevier, 2010.

Douka, K., et al. The Influence of Pretreatment Chemistry on the Radiocarbon Dating of Campanian Ignimbrite-aged Charcoal from Kostenki 14 (Russia). Elsevier, 2010.