De Vernal et al., 2001
From dinoflaj3
de Vernal, A., Henry, M., Matthiessen, J., Mudie, P.J., Rochon, A., Boessenkool, K.P., Eynaud, F., Grøsfeld, K., Guiot, J., Hamel, D., Harland, R., Head, M.J., Kunz-Pirrung, M., Levac, E., Loucheur, V., Peyron, O., Pospelova, V., Radi, T., Turon, J.-L. and Voronina, E., 2001: Dinoflagellate cyst assemblages as tracers of sea-surface conditions in the northern North Atlantic, Arctic and sub-Arctic seas; the new 'n = 677' data base and its application for quantitative palaeoceanographic reconstructions. Journal of Quaternary Science, v.16, no.7, p.681-698.