Probing the innermost region of the AU Microscopii debris disc A. Gallenne, C. Desgrange, J. Milli, J. Sanchez-Bermudez, G. Chauvin, S. Kraus, J. H. Girard and A. Boccaletti A&A, 665 (2022) A41 Published online: 08 September 2022 DOI: 10.1051/0004-6361/202244226