WMO/GAW/Inter-Comparison/of/Dobson/Ozone/Spectrophotometer/in/Tsukuba,/Japan-2006/and/Inter-Comparison/of/National/Standard/112/With/Delhi/Dobson/36/. MAUSAM 2013, 64 (2), 317-322. https://doi.org/10.54302/mausam.v64i2.688.