Pelagic Molluscs 2.0: Planktonic molluscs (Pteropods). In: Vinken, R., et al. (eds). The northwest European Tertiary Basin. Results of the International Geological Correlation Programme Project no. 124. Geologisches Jahrbuch, (A)100: 356-368, figs 188-207.

Authors(s)	Janssen, A. W. and King, C.
Year	1988
Title	Planktonic molluscs (Pteropods). In: Vinken, R., et al. (eds). The northwest European Tertiary Basin. Results of the International Geological Correlation Programme Project no. 124. Geologisches Jahrbuch, (A)100: 356-368, figs 188-207.