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Colaprete, A; Sarantos, M; Wooden, D. H; Stubbs, T. J; Cook, A. M; Shirley, M (2015). «How surface composition and meteoroid impacts mediate sodium and potassium in the lunar exosphere». Science351 (6270): 249. doi:10.1126/science.aad2380. PMID26678876. Bibcode: 2016Sci...351..249C.
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Redfield, Seth; Endl, Michael; Cochran, William D; Koesterke, Lars (2008). «Sodium Absorption from the Exoplanetary Atmosphere of HD 189733b Detected in the Optical Transmission Spectrum». The Astrophysical Journal673: L87. doi:10.1086/527475. Bibcode: 2008ApJ...673L..87R.
Colaprete, A; Sarantos, M; Wooden, D. H; Stubbs, T. J; Cook, A. M; Shirley, M (2015). «How surface composition and meteoroid impacts mediate sodium and potassium in the lunar exosphere». Science351 (6270): 249. doi:10.1126/science.aad2380. PMID26678876. Bibcode: 2016Sci...351..249C.
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