Spatial mapping of the Hanle and Zeeman effects on the Sun J. O. Stenflo, A. Gandorfer, R. Holzreuter, D. Gisler, C. U. Keller and M. Bianda A&A, 389 1 (2002) 314-324 Published online: 14 June 2002 DOI: 10.1051/0004-6361:20020580