Modelling Herschel observations of hot molecular gas emission from embedded low-mass protostars R. Visser, L. E. Kristensen, S. Bruderer, E. F. van Dishoeck, G. J. Herczeg, C. Brinch, S. D. Doty, D. Harsono and M. G. Wolfire A&A, 537 (2012) A55 Published online: 09 January 2012 DOI: 10.1051/0004-6361/201117109