@article {693,
	title = {The Illusions of Vision and the Canals of Mars},
	volume = {LXX},
	year = {1907},
	keywords = {astronomy, canals, Douglass, illusions of vision, mars},
	author = {Douglass, A.E.}
}
@article {627,
	title = {Is Mars Inhabited?},
	journal = {The Harvard Illustrated Magazine},
	volume = {Vol. VIII},
	year = {1907},
	keywords = {Douglass, mars},
	author = {Douglass, A.E.}
}
@article {673,
	title = {Mars.},
	year = {1899},
	publisher = {Popular Astronomy},
	keywords = {astronomy, Douglass, mars},
	author = {Douglass, A.E.}
}
@article {801,
	title = {Projections on the Terminator of Mars and Martian Meteorology},
	year = {1896},
	keywords = {astronomy, Douglass, historic, lowell, mars, meteorology, observatory, projections, terminator},
	author = {Douglass, A.E.}
}
@article {629,
	title = {A Cloud-Like Spot on the Terminator of Mars},
	year = {1895},
	keywords = {Douglass, mars, spot},
	author = {Douglass, A.E.}
}
@article {702,
	title = {The Polar Cap of Mars},
	journal = {Astronomy and Astrophysics},
	year = {1894},
	keywords = {astronomy, Douglass, mars, polar cap},
	author = {Douglass, A.E. and Lowell, Percival}
}
