Gilmour, I., Jolley, D., Kemp, D., Kelley, S., Gilmour, M., Daly, R., & Widdowson, M. (2014). The early Danian hyperthermal event at Boltysh (Ukraine): Relation to Cretaceous-Paleogene boundary events. In G. Keller, & A. C. Kerr (Eds.), Volcanism, Impacts, and Mass Extinctions: Causes and Effects (133-146). Geological Society of America. https://doi.org/10.1130/2014.2505%2806%29