Voelker, AHL, Salgueiro, E, Rodrigues, T, Jiménez-Espejo, FJ, Bahr, A, Alberto, A, Loureiro, I, Padilha, M, Rebotim, A and Röhl, U (2015) Mediterranean Outflow and surface water variability off southern Portugal during the early Pleistocene: A snapshot at Marine Isotope Stages 29 to 34 (1020–1135ka). Global and Planetary Change, 133. 223-237. doi:10.1016/j.gloplacha.2015.08.015
Flores, JA, Colmenero-Hidalgo, E, Mejía Molina, AE, Baumann, KH, Henderiks, J, Larsson, K, Prabhu, CN, Sierro, FJ and Rodrigues, T (2010) Distribution of large Emiliania huxleyi in the Central and Northeast Atlantic as a tracer of surface ocean dynamics during the last 25,000 years. Marine Micropaleontology, 76(3-4). 53-66. doi:10.1016/j.marmicro.2010.05.001