Tracing high energy radiation with molecular lines near deeply embedded protostarsP. Stäuber, A. O. Benz, J. K. Jørgensen, E. F. van Dishoeck, S. D. Doty and F. F. S. van der TakA&A, 466 3 (2007) 977-988DOI: https://doi.org/10.1051/0004-6361:20065762