@article {676,
	title = {Photograph of Shadow Bands},
	journal = {Astrophysical Journal},
	volume = {LXIII},
	year = {1926},
	keywords = {astronomy, Douglass, photograph, shadow bands},
	author = {Douglass, A.E.}
}
@article {638,
	title = {An Automatic Optical Photograph, Abstract},
	journal = {Publications of the Astronomical Society of the Pacific},
	year = {1919},
	keywords = {astronomy, Douglass, optic, optical, photograph},
	author = {Douglass, A.E.}
}
@article {639,
	title = {An Optical Photograph},
	journal = {The Astrophysical Journal},
	volume = {XLI},
	year = {1915},
	keywords = {astronomy, Douglass, optical, optics, photograph},
	author = {Douglass, A.E.}
}
@article {677,
	title = {Photographs of the Zodical Light},
	journal = {Astronomical Society of the Pacific},
	volume = {XIII},
	year = {1901},
	keywords = {Douglass, photograph, zodical light},
	author = {Douglass, A.E.}
}
@article {678,
	title = {Photographs of the Zodical Light},
	year = {1900},
	keywords = {astronomy, Douglass, photograph, photographs, zodical light},
	author = {Douglass, A.E.}
}
