Molecules, dust, and protostars in NGC 3503 N. U. Duronea, J. Vasquez, G. A. Romero, C. E. Cappa, R. Barbá and L. Bronfman A&A, 565 (2014) A30 Published online: 29 April 2014 DOI: 10.1051/0004-6361/201322850