Cite
HARVARD Citation
Severgnini, P. et al. (2018). Swift data hint at a binary supermassive black hole candidate at sub-parsec separation. Monthly notices of the Royal Astronomical Society. 479 (3), pp. 3804-3813. [Online].
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Severgnini, P. et al. (2018). Swift data hint at a binary supermassive black hole candidate at sub-parsec separation. Monthly notices of the Royal Astronomical Society. 479 (3), pp. 3804-3813. [Online].