Deuser, W. G., & Ross, E. H. (1989). Seasonally abundant planktonic foraminifera of the Sargasso Sea; succession, deep-water fluxes, isotopic compositions, and paleoceanographic implications. The Journal of Foraminiferal Research, 19(4), 268–293. https://doi.org/10.2113/gsjfr.19.4.268