Wefer, Gerold (1985): Stable oxygen and carbon isotopes measured on Halimeda incrassata. PANGAEA, https://doi.org/10.1594/PANGAEA.54087, In supplement to: Wefer, G (1985): Die Verteilung stabiler Isotope in Kalkschalen mariner Organismen. Geologisches Jahrbuch, A82, 114 pp, hdl:10013/epic.33623.d001