Optical polarimetric monitoring of the type II-plateau SN 2005af A. Pereyra, A. M. Magalhães, C. V. Rodrigues, C. R. Silva, R. Campos, G. Hickel and D. Cieslinski A&A, 454 3 (2006) 827-831 Published online: 17 July 2006 DOI: 10.1051/0004-6361:20065207