@article {Brion196825,
	title = {A versatile {\textquotedblleft}monoenergetic{\textquotedblright} electron impact spectrometer for the study of inelastic collision processes},
	journal = {International Journal of Mass Spectrometry and Ion Physics},
	volume = {1},
	number = {1},
	year = {1968},
	pages = {25 - 39},
	issn = {0020-7381},
	doi = {http://dx.doi.org/10.1016/0020-7381(68)80002-6},
	url = {http://www.sciencedirect.com/science/article/pii/0020738168800026},
	author = {C.E. Brion and G.E. Thomas}
}
