Event: GCOS Reference Upper Air Network Implementation and Coordination Meeting 5th session (GRUAN ICM-5) (25 February - 1 March 2013; De Bilt, Netherlands)
World Meteorological Organization,United Nations Environment Programme,International Council for Science,et al. Report of the Fifth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-5). 2013-01-01.