Comet-shaped sources at the Galactic center - Evidence of a wind from the central 0.2 pc K. Mužić, A. Eckart, R. Schödel, R. Buchholz, M. Zamaninasab and G. Witzel A&A, 521 (2010) A13 Published online: 14 October 2010 DOI: 10.1051/0004-6361/200913087