Properties of extragalactic dust inferred from linear polarimetry of Type Ia SupernovaeF. Patat, S. Taubenberger, N. L. J. Cox, D. Baade, A. Clocchiatti, P. Höflich, J. R. Maund, E. Reilly, J. Spyromilio, L. Wang, J. C. Wheeler and P. ZelayaA&A, 577 (2015) A53DOI: https://doi.org/10.1051/0004-6361/201424507