@article {Brion1969197,
	title = {Negative ion formation in the hexafluorides of sulphur, selenium and tellurium},
	journal = {International Journal of Mass Spectrometry and Ion Physics},
	volume = {3},
	number = {3{\textendash}4},
	year = {1969},
	pages = {197 - 202},
	issn = {0020-7381},
	doi = {http://dx.doi.org/10.1016/0020-7381(69)85003-5},
	url = {http://www.sciencedirect.com/science/article/pii/0020738169850035},
	author = {C.E. Brion}
}
