@book {Schneider1973,
	title = {{12,000-ft. sea-water variable ballast system for the submersible Alvin}},
	series = {Papers},
	year = {1973},
	pages = {6},
	publisher = {American Society of Mechanical Engineers},
	organization = {American Society of Mechanical Engineers},
	address = {New York, N.Y.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	author = {Schneider, W E}
}
