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Nova (3. 1901) Persei. 



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Harvard Cbllege Observa- 

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Spectrum of lightning. 



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SiiUa "Nova Persei." 



Nota 2*. Roma, Rend. Ace. Lincei, (Ser. 

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La nuova stella nella 



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Note sur la nomelle etoile 



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Ueber die Nova (3. 1901) 



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The Spectrum of Nova 



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The spectrum of Nova (3. 



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