Micrometrical observations of the double stars discovered at Pulkowa made with the thirty-six-inch and twelve-inch refractors of the Lick Observatory together with the mean results of the previous observations of these stars

"Micrometrical observations of the double stars discovered at Pulkowa made with the thirty-six-inch and twelve-inch refractors of the Lick Observatory together with the mean results of the previous observations of these stars"@en
"Micrometrical observations of the double stars discovered at Pulkowa made with the thirty-six-inch and twelve-inch refractors of the Lick Observatory : together with the mean results of the previous observations of these stars"
"Micrometrical observations of the double stars discovered at Pulkowa : made with the thirty-six-inch and twelve-inch refractors of the Lick Observatory; together with the mean results of the previous observations of these stars"