High-resolution 21-cm observations of low-column density gas clumps in the Milky Way halo N. Ben Bekhti, P. Richter, B. Winkel, F. Kenn and T. Westmeier A&A, 503 2 (2009) 483-493 Published online: 15 July 2009 DOI: 10.1051/0004-6361/200811259