Polarization of the changing-look quasar J1011+5442 D. Hutsemékers, B. Agís González, D. Sluse, C. Ramos Almeida and J.-A. Acosta Pulido A&A, 604 (2017) L3 Published online: 28 July 2017 DOI: 10.1051/0004-6361/201731397