Biblio
“Drawings Of Jupiter's Third Satellite”. Abdruck Aus Den Astr. Nachr. Bd. 143. Abdruck Aus Den Astr. Nachr. Bd. 143.
. 1897. Douglas, AE_Drawings of Jupiters Third Satellite_1897.pdf (3.44 MB)“The First Satellite Of Jupiter”. Abdruck Aus Den Astr. Nachr. Bd. 146.. Abdruck Aus Den Astr. Nachr. Bd. 146.
. 1898. Douglas, AE_The First Satellite of Jupiter_1898.pdf (15.82 MB)“Present Rotation Period Of The First Satellite Of Jupiter And Its Change In Form And Period Since 1892”. The Astronomical Journal (No. 441). The Astronomical Journal.
. 1898. Douglas, AE_Present Rotation Period of the First Satellite of Jupiter and its Change in Form and Period Since 1892_1898.pdf (3.57 MB)