1. Arlt, G., 1975. Remarks on indicator organisms (meiofauna) in the coastal waters of the GDR. Merentutlaimuslaitoksen julkaisu/Havsforskingsinst. Skr. No. 239: 272?279.
2. Arnoux, A. & D. Bellan-Santini, 1972. Relations entre la pollution du secteur de Cortiou par les d�tergents anioniques et les modifications de peuplements de Cystoseira stricta. T�thys 4: 583?586.
3. Bakker, C. & G. R. Heerebaut, 1971. Nota over de verontreiniging van de Westerschelde. Med. Hydrobiol. Ver. 4: 17?32.
4. Bakker, C. & N. De Pauw, 1975. Comparison of plankton assemblages of identical salinity ranges in estuarine, tidal and stagnant evironments. II. Zooplankton. Neth. J. Sea Res. 9: 145?165.
5. Barnett, P., 1968. Distribution and ecology of harpacticoid copepods of an intertidal mudflat. Int. Revue ges. Hydrobiol. 53: 173?209.