Lopes C, Mix AC, Abrantes F. Environmental controls of diatom species in northeast Pacific sediments. Palaeogeography, Palaeoclimatology, Palaeoecology. 2010;297(1):188 - 200. doi:10.1016/j.palaeo.2010.07.029

Lopes C, Mix AC, Abrantes F. Diatoms in northeast Pacific surface sediments as paleoceanographic proxies. Marine Micropaleontology. 2006;60(1):45 - 65. doi:10.1016/j.marmicro.2006.02.010