The bumpy light curve of Type IIn supernova iPTF13z over 3 years A. Nyholm, J. Sollerman, F. Taddia, C. Fremling, T. J. Moriya, E. O. Ofek, A. Gal-Yam, A. De Cia, R. Roy, M. M. Kasliwal et al. (3 more) A&A, 605 (2017) A6 Published online: 29 August 2017 DOI: 10.1051/0004-6361/201629906