@book {Ballard1990,
	title = {{The Discovery of the Bismarck}},
	year = {1990},
	pages = {231},
	publisher = {Warner Books},
	organization = {Warner Books},
	address = {New York},
	isbn = {0-44-651386-5},
	author = {Ballard, R D and Archbold, R}
}
@book {Ballard1987,
	title = {{The discovery of the Titanic}},
	year = {1987},
	pages = {230},
	publisher = {Warner Books},
	organization = {Warner Books},
	address = {New York},
	isbn = {0-446-51385-7},
	author = {Ballard, R D and Archbold, R}
}
