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Mehdipour, M.; Kaastra, J. S.; Kriss, G. A.; Arav, N.; Behar, E.; Bianchi, S.; Branduardi-Raymont, G.; Cappi, M.; Costantini, E.; Ebrero, J.; Di Gesu, L.; Kaspi, S.; Mao, J.; De Marco, B.; Matt, G.; Paltani, S.; Peretz, U.; Peterson, B. M.; Petrucci, P.-O.; Pinto, C.; Ponti, G.; Ursini, F.; de Vries, C. P.; Walton, D. J. . (2017). Chasing obscuration in type-I AGN: discovery of an eclipsing clumpy wind at the outer broad-line region of NGC 3783. Astronomy & Astrophysics, 607(), A28–. doi:10.1051/0004-6361/201731175 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research