| Caballero et al 2009; X-Ray Variability of σ Orionis Young Stars as Observed with ROSAT |
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| Jueves 13 de Mayo de 2010 13:23 | |||
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Caballero, J. A.; López-Santiago, J.; de Castro, E.; Cornide, M X-Ray Variability of σ Orionis Young Stars as Observed with ROSAT The Astronomical Journal vol. 137, pag. 5012 (2009)
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