The radial distribution of core-collapse supernovae in spiral host galaxies A. A. Hakobyan, G. A. Mamon, A. R. Petrosian, D. Kunth and M. Turatto A&A, 508 3 (2009) 1259-1268 Published online: 27 October 2009 DOI: 10.1051/0004-6361/200912795