The magnetic field structure in W51A A. Chrysostomou, D. K. Aitken, T. Jenness, C. J. Davis, J. H. Hough, R. Curran and M. Tamura A&A, 385 3 (2002) 1014-1021 Published online: 15 April 2002 DOI: 10.1051/0004-6361:20020154