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Correlation and time delays of the X-ray and optical emission of the Seyfert Galaxy NGC 3783
(WILEY-BLACKWELL, 2009-08-21)
The 1877–1878 El Niño episode: associated impacts in South America
(Springer, 2009)
Searching for spiral features in the outer Galactic disk The field towards WR38 and WR38a
(EDP SCIENCES S A, 2009-01)
THE EVOLUTION OF SWIFT/BAT BLAZARS AND THE ORIGIN OF THE MeV BACKGROUND
(IOP PUBLISHING LTD, 2009-07-01)