@conference {mcguffey2008optical,
	title = {Optical diagnostics on capillary waveguides for extension of laser wakefield acceleration lengths},
	booktitle = {APS Division of Plasma Physics Meeting Abstracts},
	volume = {50},
	year = {2008},
	pages = {PP6{\textendash}058},
	author = {McGuffey, C and Matsuoka, T and Levin, M and Rousseau, P and Chvykov, V and Kalintchenko, G and Yanovsky, V and Zigler, A and Maksimchuk, A and Krushelnick, K}
}
