http://savannahnow.com/exchange/2013-11-13/divers-recover-piece-css-georgia#.UoSP6HC-1I4
http://www.cnn.com/2013/11/13/us/georgia-civil-war-ironclad-ship/
http://www.army.mil/article/114925/Army_Corps__U_S__Navy_retrieve_piece_of_Civil_War_ironclad_from_Savannah_River/