O'Brien, K., Horne, K., Gomer, R., Oke, J., & van der Klis, M. (2004). High-speed Keck II and RXTE spectroscopy of Cygnus X-2 - I. Three X-ray components revealed by correlated variability.
Lua i Stíl Chicago (17ú heag.)O'Brien, K., K. Horne, R. Gomer, J. Oke, agus M. van der Klis. High-speed Keck II and RXTE Spectroscopy of Cygnus X-2 - I. Three X-ray Components Revealed by Correlated Variability. 2004.
Lua MLA (9ú heag.)O'Brien, K., et al. High-speed Keck II and RXTE Spectroscopy of Cygnus X-2 - I. Three X-ray Components Revealed by Correlated Variability. 2004.
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