@article { ISI:A1968A741400016,
	title = {MASS SPECTROMETRIC ANALYSIS OF OXYGEN},
	journal = {NATURE},
	volume = {217},
	number = {5132},
	year = {1968},
	pages = {946-\&},
	issn = {0028-0836},
	doi = {10.1038/217946a0},
	author = {Brion, CE and STEWART, WB}
}
