Evolution of grain size distribution in galactic discs M. Relaño, U. Lisenfeld, K.-C. Hou, I. De Looze, J. M. Vílchez and R. C. Kennicutt A&A, 636 (2020) A18 Published online: 08 April 2020 DOI: 10.1051/0004-6361/201937087