7David R.Basco, Douglas A.Bellomo, John M.Hazelton, Bryan N.Jones.The Influence of Seawalls on Subaerial Beac h Volumes With Receding Shoreines[J].Coastal Engineering , 1997, 30. 203-233.
8R.Kirby, S.Withington.Engineering History, Imperial Civiliz ation.Dover Publications Inc. 1990.