@book {Schneider1972,
	title = {{Alvin sea-water variable ballast system operation and maintenance manual}},
	series = {Naval Ship Research and Development Center (NSRDC) Report},
	year = {1972},
	publisher = {Naval Ship Research and Development Center},
	organization = {Naval Ship Research and Development Center},
	address = {Bethesda, Md.},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	author = {Schneider, W E and Lebowitz, R K and Sasse, J A and McPherson, S E}
}
