Crossing the Gould Belt in the Orion vicinity K. Biazzo, J. M. Alcalá, E. Covino, M. F. Sterzik, P. Guillout, C. Chavarría-K., A. Frasca and R. Raddi A&A, 542 (2012) A115 Published online: 18 June 2012 DOI: 10.1051/0004-6361/201118379