Structure and dynamics of the class I young stellar object L1489 IRS C. Brinch, A. Crapsi, M. R. Hogerheijde and J. K. Jørgensen A&A, 461 3 (2007) 1037-1047 Published online: 16 October 2006 DOI: 10.1051/0004-6361:20065473