@article {1976JOSA...66.1060D,
	title = {Spectroscopic diagnostics of the solar plasma.},
	journal = {Journal of the Optical Society of America (1917-1983)},
	volume = {66},
	year = {1976},
	month = {jan},
	pages = {1060},
	author = {Dupree, A.~K.}
}
