Biblio
“An Automatic Optical Photograph, Abstract”. Publications Of The Astronomical Society Of The Pacific. Publications Of The Astronomical Society Of The Pacific.
. 1919. ![application/pdf PDF icon](/modules/file/icons/application-pdf.png)
“An Optical Photograph”. The Astrophysical Journal XLI (No. 3). The Astrophysical Journal.
. 1915. ![application/pdf PDF icon](/modules/file/icons/application-pdf.png)