Widmark, Joen G. V. (1994): Global biogeographic patterns among benthic Foraminifera in the Late Cretaceous deep-sea environment; a pilot study. [University of California, Museum of Paleontology], Berkeley, CA, United States, In: Langer, Martin R. (editor), Bagi, Harmeet (editor), Forams '94; international symposium on Foraminifera, 16 (2, Suppl.), 66, georefid:2008-121161