Cavaleiro C, Voelker AHL, Stoll H, et al. Insolation forcing of coccolithophore productivity in the North Atlantic during the Middle Pleistocene. Quaternary Science Reviews. 2018;191:318 - 336. doi:10.1016/j.quascirev.2018.05.027

Voelker AHL, Rodrigues T, Billups K, et al. Variations in mid-latitude North Atlantic surface water properties during the mid-Brunhes (MIS 9–14) and their implications for the thermohaline circulation. Climate of the Past. 2010;6(4):531 - 552. doi:10.5194/cp-6-531-2010