PTF11mnb: First analog of supernova 2005bf - Long-rising, double-peaked supernova Ic from a massive progenitor
F. Taddia, J. Sollerman, C. Fremling, E. Karamehmetoglu, R. M. Quimby, A. Gal-Yam, O. Yaron, M. M. Kasliwal, S. R. Kulkarni, P. E. Nugent, G. Smadja and C. Tao