Proceedings of the Third International Workshop on Phosphorus in Sediments. Edited by P. C. M. Boers, Th. E. Cappenberg and W. van Raaphorst. Developments in Hydrobiology 84, Series editor H. J. Dumont. Reprinted from Hydrobiologia, vol. 253 (1993). 376 pp. Kluwer Academic Publishers, Dordrecht, The Netherlands, 1993. ISBN 0–7923–2126-X