@article {Karl1984,
	title = {{Themophilic microbial activity in samples from deep sea hydrothermal vents}},
	journal = {Marine Biology Letters},
	volume = {5},
	number = {4},
	year = {1984},
	pages = {227{\textendash}231},
	issn = {0165-859X},
	author = {Karl, D M and Burns, D and Orrett, K and Jannasch, H W}
}
