@article {635,
	title = {A Summary of Planetary Work at the Lowell Observatory and the Conditions Under Which It Has Been Performed},
	year = {1899},
	keywords = {Douglass, lowell observatory, popular astronomy, summary},
	author = {Douglass, A.E.}
}
@article {694,
	title = {The Lowell Observatory and Its Work},
	year = {1885},
	keywords = {astronomy, Douglass, lowell observatory},
	author = {Douglass, A.E.}
}
