A sample of [C II] clouds tracing dense clouds in weak FUV fields observed by Herschel J. L. Pineda, T. Velusamy, W. D. Langer, P. F. Goldsmith, D. Li and H. W. Yorke A&A, 521 (2010) L19 Published online: 01 October 2010 DOI: 10.1051/0004-6361/201015089