Lund et al., 1993
From dinoflaj3
Lund, J.J, Lund-Christensen, J. and Strauss, C., 1993: Dinoflagellate cyst biostratigraphy and palaeoenvironmental analysis in the Miocene of the Regional Committee on Northern Neogene Stratigraphy (RCNNS) research well Nieder Ochtenhausen, NW Germany. Festschrift für Prof. W. Krutzsch, Museum für Naturkunde der Humboldt-Universität der Berlin, p. 27-37.