4. Astronomy and Astrophysics
  5. Astronomy

Wm. E. Sperra

Astronomy and Astrophysics – Astronomy

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Erratum [On the nature of the light-variations of 3407 S Antliae]

Astronomy and Astrophysics – Astronomy
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Maxima and minima of variable stars

Astronomy and Astrophysics – Astronomy
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Minima of the Algol-type variable 320 U Cephei,1894-1896

Astronomy and Astrophysics – Astronomy
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Observations of Short-Period Variable Stars

Astronomy and Astrophysics – Astronomy
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Observations of variable stars, No. 10

Astronomy and Astrophysics – Astronomy
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