1. Intertidal activity, breeding and the floating habit of Hydrobia ulvae in the Ythan estuary;Anderson;Journal of the Marine Biological Association of the United Kingdom,1971
2. North East River Purification Board;Anon;Annual Report,1976
3. The utilization of estuarine and agricultural habitats by lapwings (Vanellus vanellus L.) and golden plovers (Pluvialis apricaria L.);Baillie,1976
4. Aspects of energyflow in a saltmarsh ecosystem of the Swartkops Estuary, Port Elizabeth;Baird,1979
5. Biomass and species richness of the macrobenthic animals living on the tidal flats of the Dutch Wadden Sea: Long-term changes during a period with mild winters;Beukema;Netherlands Journal of Sea Research,1978