@article {Bah:June 1998:0764-4442:1381,
	author = "Bah S.",
	title = "Cauchy problem on a characteristic conoid for semilinear hyperbolic equations",
	journal = "Comptes Rendus de lAcademie des Sciences Series I Mathematics",
	volume = "326",
	year = "June 1998",
	abstract = "",
	pages = "1381-1384(4)",
	url = "http://www.ingentaconnect.com/content/els/07644442/1998/00000326/00000012/art80396"
	doi = "doi:10.1016/S0764-4442(98)80396-0"
}