Hodell D, Lourens L, Crowhurst S, et al. A reference time scale for Site U1385 (Shackleton Site) on the SW Iberian Margin. Global and Planetary Change. 2015;133:49 - 64. doi:10.1016/j.gloplacha.2015.07.002

Hernandez-Molina FJ, Stow DAV, Alvarez-Zarikian CA, et al. Onset of Mediterranean outflow into the North Atlantic. Science. 2014;344(6189):1244 - 1250. doi:10.1126/science.1251306