Austin, G., Rehfisch, M.M., Holloway, S.J., Clark, N.A., Balmer, D.E., Yates, M.G., Clarke, R.T., Swetnam, R.D., Eastwood, J.A., dit Durell, S.E.A.le V., West, J.R. & Goss-Custard, J.D. 1996. Estuaries, sediments and shorebirds. lll. Predicting waterfowl densities on intertidal areas.