GASP - XXVI. HI gas in jellyfish galaxies: The case of JO201 and JO206 M. Ramatsoku, P. Serra, B. M. Poggianti, A. Moretti, M. Gullieuszik, D. Bettoni, T. Deb, A. Franchetto, J. H. van Gorkom, Y. Jaffé et al. (14 more) A&A, 640 (2020) A22 Published online: 04 August 2020 DOI: 10.1051/0004-6361/202037759