Scientific journal publication Nitric acid in the stratosphere based on Odin observations from 2001 to 2009- part 1: A global climatology. Urban, J.; Pommier, M.; Murtagh, D. P.; Santee, M. L.; Orsolini, Y. J. Publication details Journal: Atmospheric Chemistry and Physics, 9, 7031–7044, 2009 Link: acp-9-7031-2009