Correlation of the biostratigraphy of marine neogene deposits, based on benthonic foraminifera, established in Belgium and the Netherlands - Doppert, J.W. Chr; Laga, P. G.; Meuter, F. J. De (Haarlem : Geological Survey of the Netherland, 1979)
Bibliography : p. 8
Keywords: Geology, Stratigraphic -- Tertiary