Field-aligned Evershed flows in the photosphere of a sunspot penumbra L. R. Bellot Rubio, H. Balthasar, M. Collados and R. Schlichenmaier A&A, 403 3 (2003) L47-L50 Published online: 23 May 2003 DOI: 10.1051/0004-6361:20030576