@conference {hubbard2003simulation,
	title = {Simulation of accelerated electron spectra in laser wakefield accelerators},
	booktitle = {Proceedings of the 2003 Particle Accelerator Conference},
	volume = {1},
	year = {2003},
	pages = {716{\textendash}718},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Hubbard, Richard F and Gordon, DF and Jones, TG and Pe{\~n}ano, JR and Sprangle, P and Ting, A and Hafizi, Bahman and Zigler, A and Kaganovich, D}
}
