1. Adams, C.G., Gentry, A.W., Whybrow P.J., 1983. Dating the terminal Tethyan event. In: Meulenkamp, J.E. (Ed.), Reconstruction of Marine Paleoenvironments. Utrecht Micropaleontological Bulletins 30, pp. 273–298.
2. Lithostratigraphy of the Miocene deposits in the Gliwice area (Upper Silesia, Poland);Alexandrowicz;Bull. Pol. Acad. Sci. Earth Sci,1997
3. Bé, A.W.H., 1977. An ecological, zoogeographic and taxonomic review of the Recent Planktonic Foraminifera. In: Ramsay, A.T.S. (Ed.), Oceanic Micropaleontology. Backhuys Publishers, London, pp. 1–89.
4. Ecology of planktonic foraminifera and biogeographic patterns of life and fossil assemblages in the Indian Ocean;Bé;Micropaleontology,1977
5. On the determination of Pleistocene temperatures from planktonic foraminifera;Berger;J. Foraminif. Res,1975