Gagen, M., Wolfe, A. P., Reyes, A. V., Royer, D. L., Greenwood, D. R., Doria, G., . . . Westgate, J. A. (2017). Middle Eocene CO2 and climate reconstructed from the sediment fill of a subarctic kimberlite maar. Geology, 45(7), pp. 619-622. doi:10.1130/g39002.1

Gagen, Mary, Alexander P. Wolfe, Alberto V. Reyes, Dana L. Royer, David R. Greenwood, Gabriela Doria, Peter A. Siver, and John A. Westgate. "Middle Eocene CO2 and Climate Reconstructed From the Sediment Fill of a Subarctic Kimberlite Maar." Geology 45, no. 7 (2017): 619-622.

Gagen, Mary, et al. "Middle Eocene CO2 and Climate Reconstructed From the Sediment Fill of a Subarctic Kimberlite Maar." Geology 45.7 (2017): 619-622.