New Insights in Extragalactic Magnetic Fields - ERRATUM Feretti, Luigina ; Govoni, Federica ; Heald, George ; Rudnick, Lawrence ; Johnston-Hollit, Melanie Abstract Publication: IAU General Assembly Pub Date: 2020 DOI: 10.1017/S1743921320004172 Bibcode: 2020IAUGA..30E...2F