@article {Kuznetsov:August 1997:0003-4916:157,
	author = "Kuznetsov A.V.",
	title = "S-Matrix Theory of Ultrafast Optical Phenomena in Semiconductors",
	journal = "Annals of Physics",
	volume = "258",
	year = "August 1997",
	abstract = "",
	pages = "157-209(53)",
	url = "http://www.ingentaconnect.com/content/els/00034916/1997/00000258/00000002/art95701"
	doi = "doi:10.1006/aphy.1997.5701	"
}