Galactic cold cores - IX. Column density structures and radiative-transfer modelling M. Juvela, J. Malinen, J. Montillaud, V.-M. Pelkonen, I. Ristorcelli and L. V. Tóth A&A, 614 (2018) A83 Published online: 19 June 2018 DOI: 10.1051/0004-6361/201630304