A search for shock-excited molecular hydrogen knots in Chamaeleon I very low mass YSOs M. Gómez, P. Persi, A. R. Marenzi, M. Roth and M. Tapia A&A, 423 2 (2004) 629-641 Published online: 06 August 2004 DOI: 10.1051/0004-6361:20047173