Searching for supernovae in the multiply-imaged galaxies behind the gravitational telescope A370 T. Petrushevska, A. Goobar, D. J. Lagattuta, R. Amanullah, L. Hangard, S. Fabbro, C. Lidman, K. Paech, J. Richard and J. P. Kneib A&A, 614 (2018) A103 Published online: 28 June 2018 DOI: 10.1051/0004-6361/201731552