Sier, M., Langereis, C., Dupont-Nivet, G., Feibel, C., Joordens, J., van der Lubbe, J., . . . Cohen, A. (2017). The top of the Olduvai Subchron in a high-resolution magnetostratigraphy from the West Turkana core WTK13, hominin sites and Paleolakes Drilling Project (HSPDP). Elsevier.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sier, M., C. Langereis, G. Dupont-Nivet, C. Feibel, J. Joordens, J. van der Lubbe, C. Beck, D. Olago, و A. Cohen. The Top of the Olduvai Subchron in a High-resolution Magnetostratigraphy from the West Turkana Core WTK13, Hominin Sites and Paleolakes Drilling Project (HSPDP). Elsevier, 2017.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sier, M., et al. The Top of the Olduvai Subchron in a High-resolution Magnetostratigraphy from the West Turkana Core WTK13, Hominin Sites and Paleolakes Drilling Project (HSPDP). Elsevier, 2017.