@article {Heirtzler1977d,
	title = {{Detailed structure of Mid-Atlantic Rift valley floor}},
	journal = {Tectonophysics},
	volume = {38},
	number = {1-2},
	year = {1977},
	pages = {7{\textendash}10},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0040-1951},
	doi = {10.1016/0040-1951(77)90198-6},
	url = {http://dx.doi.org/10.1016/0040-1951(77)90198-6},
	author = {Heirtzler, J R}
}
@article {Heirtzler1976,
	title = {{Deep-sea research by manned submersibles}},
	journal = {Science},
	volume = {194},
	number = {4262},
	year = {1976},
	pages = {294{\textendash}299},
	keywords = {HOV Alvin (Human Occupied Vehicle)},
	issn = {0036-8075},
	doi = {10.1126/science.194.4262.294},
	url = {http://dx.doi.org/10.1126/science.194.4262.294},
	author = {Heirtzler, J R and Grassle, J F}
}
