@article {Ballard1975c,
	title = {{Improving the usefulness of deep-sea photographs with precision tracking}},
	journal = {Oceanus},
	volume = {18},
	number = {3},
	year = {1975},
	pages = {40{\textendash}43},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0029-8182},
	author = {Ballard, R D}
}
