1. North Sea nutrients and eutrophication;Brockmann,1988
2. Cycling of nutrients in the North Sea;Brockmann;Neth. J. Sea Res.,1990
3. Comparison of pigmentation of two strains of the prymnesiophyte Phaeocystis sp;Buma;Neth. J. Sea Res.,1991
4. Changes in phytoplankton communities: when, where and why;Colijn,1992
5. Algal pigment fingerprints: clue to taxon-specific abundance, productivity and degradation of phytoplankton in seas and oceans;Gieskes;NATO ASI Series,1991