CASSOWARY 20: a wide separation Einstein Cross identified with the X-shooter spectrograph

Pettini, Max ; Christensen, Lise ; D'Odorico, Sandro ; Belokurov, Vasily ; Evans, N. Wyn ; Hewett, Paul C. ; Koposov, Sergey ; Mason, Elena ; Vernet, Joël

Monthly notices of the Royal Astronomical Society, 2010-03, Vol.402 (4), p.2335-2343 [Periódico revisado por pares]

Oxford, UK: Blackwell Publishing Ltd

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