1. Armstrong, W., Wright, E.J., Lythe, S. & Gaynard, T.J. (1985). Plant zonation and the effect of the spring-neap tidal cycle on soil aeration in a Humber salt marsh. J. Ecol. 73: 323–339.
2. Baumann, R.H., Day, J.W. & Miller, C.A. (1984). Mississippi deltaic wetland survival: sedimentation versus coastal submergence. Science 224: 1093–1095.
3. Beeftink, W.G. (1975). The ecological significance of embankment and drainage with respect to the vegetation of the South-West Netherlands. J. Ecop. 63: 423–458.
4. Beeftink, W.G. (1977a). The coastal salt marshes of Western and Northern Europe: an ecological and phytosociological approach. In: V.J. Chapman (Ed.), Wet coastral ecosystems, pp 109–155. Elsevier, Amsterdam.
5. Beeftink, W.G. (1977b). Salt-marshes. In: R.S.K. Barnes (Ed.), The coastline, pp 93–121. Wiley, London.