Multi-wavelength VLTI study of the puffed-up inner rim of a circumbinary disc A. Corporaal, J. Kluska, H. Van Winckel, D. Bollen, D. Kamath and M. Min A&A, 650 (2021) L13 Published online: 16 June 2021 DOI: 10.1051/0004-6361/202141154