Radiative transfer in circumstellar disks - I. 1D models for GQ Lupi S. D. Hügelmeyer, S. Dreizler, P. H. Hauschildt, A. Seifahrt, D. Homeier and T. Barman A&A, 498 3 (2009) 793-800 Published online: 19 March 2009 DOI: 10.1051/0004-6361/200811536