Ibaraki, Masako (1990): Eocene through Pleistocene planktonic foraminifers off Peru, Leg 112 - biostratigraphy and paleoceanography. In: Suess, E; von Huene, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 112, 239-262, doi:10.2973/odp.proc.sr.112.197.1990