@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}
}
@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}
}
@book {Schneider1972a,
	title = {{Evaluation of DSV Alvin 12,000-foot sea-water variable-ballast system}},
	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}
}
