Simulating MOS science on the ELT: Lyα forest tomography J. Japelj, C. Laigle, M. Puech, C. Pichon, H. Rahmani, Y. Dubois, J. E. G. Devriendt, P. Petitjean, F. Hammer, E. Gendron et al. (7 more) A&A, 632 (2019) A94 Published online: 09 December 2019 DOI: 10.1051/0004-6361/201936048