Forward-scattering Hanle effect in the solar Ca i 4227 Å line H. Frisch, L.S. Anusha, M. Bianda, R. Holzreuter, K.N. Nagendra, R. Ramelli, M. Sampoorna, H.N. Smitha and J.O. Stenflo EAS Publications Series, 55 (2012) 59-63 Published online: 27 June 2012 DOI: 10.1051/eas/1255007