An analysis of star formation with Herschel in the Hi-GAL survey - I. The science demonstration phase fieldsM. Veneziani, D. Elia, A. Noriega-Crespo, R. Paladini, S. Carey, A. Faimali, S. Molinari, M. Pestalozzi, F. Piacentini, E. Schisano and C. TibbsA&A, 549 (2013) A130DOI: https://doi.org/10.1051/0004-6361/201219570