Journal Article
Gandorfer, A. M.; Povel, H. P.; Steiner, P.; Aebersold, F.; Egger, U.; Feller, A.; Gisler, D.; Hagenbuch, S.; Stenflo, J. O.: Solar polarimetry in the near UV with the Zurich Imaging Polarimeter ZIMPOL II. Astronomy and Astrophysics
422 (2), pp. 703 - 708 (2004)