@article {krall1995design,
	title = {Design considerations for a density-channelguided laser wake-field accelerator},
	journal = {NRL Memo. Rep. NRL/MR/6790-95},
	volume = {7651},
	year = {1995},
	author = {Krall, Jonathan and Zigler, Arie and NAVAL RESEARCH LAB WASHINGTON DC}
}
