@article {2860,
	title = {Octopus: A First-Principles Tool for Excited Electron-Ion Dynamics},
	journal = {Computer Physics Communications},
	volume = {151},
	year = {2003},
	pages = {60-78},
	author = {Marques, Miguel A.L. and Castro, Alberto and Bertsch, George F. and Rubio, Angel}
}
