@article {Yeo:December 1998:0148-9062:1051,
	author = "Yeo I.W.",
	author = "de Freitas M.H.",
	author = "Zimmerman R.W.",
	title = "Effect of shear displacement on the aperture and permeability of a rock fracture",
	journal = "International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts",
	volume = "35",
	year = "December 1998",
	abstract = "",
	pages = "1051-1070(20)",
	url = "http://www.ingentaconnect.com/content/els/01489062/1998/00000035/00000008/art00165"
	doi = "doi:10.1016/S0148-9062(98)00165-X"
}