Metallicity from Type II supernovae from the (i)PTF F. Taddia, P. Moquist, J. Sollerman, A. Rubin, G. Leloudas, A. Gal-Yam, I. Arcavi, Y. Cao, A. V. Filippenko, M. L. Graham et al. (6 more) A&A, 587 (2016) L7 Published online: 01 March 2016 DOI: 10.1051/0004-6361/201527983