New Variable Stars found on the Astrographic Plates at the Royal Observatory, Greenwich. Monthly Notices of the Royal Astronomical Society. 1904, 64 (9): 837–838. Bibcode:1904MNRAS..64..837.. doi:10.1093/mnras/64.9.837.
New Variable Stars found on the Astrographic Plates at the Royal Observatory, Greenwich. Monthly Notices of the Royal Astronomical Society. 1904, 64 (9): 837–838. Bibcode:1904MNRAS..64..837.. doi:10.1093/mnras/64.9.837.