Lossow, Stefan, Joachim Urban, Patrick Eriksson, Donal Murtagh, and Joerg Gumbel (2007), Critical parameters for the retrieval of mesospheric water vapour and temperature from Odin/SMR limb measurements at 557 GHz, ADVANCES IN SPACE RESEARCH, 40(6), 835-845, doi:10.1016/j.asr.2007.05.026.