@article {Kuramoto1999,
	title = {{Precise gravity measurements for gas hydrate layer}},
	journal = {JAMSTEC Journal of Deep Sea Research},
	number = {14},
	year = {1999},
	pages = {371{\textendash}379},
	issn = {1340-7848},
	url = {http://docsrv.godac.jp/MSV2{\_}DATA/23/14{\_}30.pdf},
	author = {Kuramoto, S and Joshima, M}
}
