Photoelectric effect on dust grains across the L1721 cloud in the ρ Ophiuchi molecular complexE. Habart, L. Verstraete, F. Boulanger, G. Pineau des Forêts, F. Le Peintre and J. P. BernardA&A, 373 2 (2001) 702-713DOI: https://doi.org/10.1051/0004-6361:20010342
