MUSE adaptive-optics spectroscopy confirms dual active galactic nuclei and strongly lensed systems at sub-arcsec separation. - Scialpi, M.; Mannucci, F.; Marconcini, C.; Venturi, G.; Pancino, E.; Marconi, A.; Cresci, G.; Belfiore, F.; Amiri, A.; Bertola, E.; Carniani, S.; Cicone, C.; et al. (Astronomy & Astrophysics / Astronomie et Astrophysique, 2024)