Polarization of changing-look quasars D. Hutsemékers, B. Agís González, F. Marin, D. Sluse, C. Ramos Almeida and J.-A. Acosta Pulido A&A, 625 (2019) A54 Published online: 10 May 2019 DOI: 10.1051/0004-6361/201834633