Grain growth in the envelopes and disks of Class I protostars A. Miotello, L. Testi, G. Lodato, L. Ricci, G. Rosotti, K. Brooks, A. Maury and A. Natta A&A, 567 (2014) A32 Published online: 07 July 2014 DOI: 10.1051/0004-6361/201322945