Observations of the Goldreich-Kylafis effect in star-forming regions with XPOL at the IRAM 30 m telescopeJ. Forbrich, H. Wiesemeyer, C. Thum, A. Belloche and K. M. MentenA&A, 492 3 (2008) 757-766DOI: https://doi.org/10.1051/0004-6361:200811056