A polarimetric view of the open cluster Lyngå6 and the Cepheid TW Normæ A. M. Orsatti, E. I. Vega and H. G. Marraco A&A, 380 1 (2001) 130-136 Published online: 15 December 2001 DOI: 10.1051/0004-6361:20011350