Physical structure of the envelopes of intermediate-mass protostars N. Crimier, C. Ceccarelli, T. Alonso-Albi, A. Fuente, P. Caselli, D. Johnstone, C. Kahane, B. Lefloch, S. Maret, R. Plume et al. (4 more) A&A, 516 (2010) A102 Published online: 22 July 2010 DOI: 10.1051/0004-6361/200913499