Determining the effects of clumping and porosity on the chemistry in a non-uniform AGB outflow (Corrigendum)M. Van de Sande, J. O. Sundqvist, T. J. Millar, D. Keller, W. Homan, A. de Koter, L. Decin and F. De CeusterA&A, 634 (2020) C1DOI: https://doi.org/10.1051/0004-6361/201732276e
