The kinematics of NGC 1333-IRAS2A – a true Class 0 protostar C. Brinch, J. K. Jørgensen and M. R. Hogerheijde A&A, 502 1 (2009) 199-205 Published online: 04 June 2009 DOI: 10.1051/0004-6361/200810831