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Brown, D. J.; Evans, R.F.; Cowden, W. B.; Fenn, M. D. (1994). The Pyrimidines. New York: John Wiley & Sons. hlm. 242–244. ISBN0-471-50656-7.Pemeliharaan CS1: Banyak nama: authors list (link)
Brown, D. J.; Evans, R.F.; Cowden, W. B.; Fenn, M. D. (1994). The Pyrimidines. New York: John Wiley & Sons. hlm. 4–8. ISBN0-471-50656-7.Pemeliharaan CS1: Banyak nama: authors list (link)
Brown, D. J.; Evans, R.F.; Cowden, W. B.; Fenn, M. D. (1994). The Pyrimidines. New York: John Wiley & Sons. hlm. 241–2. ISBN0-471-50656-7.Pemeliharaan CS1: Banyak nama: authors list (link)
Brown, D. J.; Evans, R.F.; Cowden, W. B.; Fenn, M. D. (1994). The Pyrimidines. New York: John Wiley & Sons. hlm. 149–239. ISBN0-471-50656-7.Pemeliharaan CS1: Banyak nama: authors list (link)
Nuevo M, Milam SN, Sandford SA, Elsila JE, Dworkin JP (2009). "Formation of uracil from the ultraviolet photo-irradiation of pyrimidine in pure H2O ices". Astrobiology. 9 (7): 683–695. Bibcode:2009AsBio...9..683N. doi:10.1089/ast.2008.0324. PMID19778279.Pemeliharaan CS1: Banyak nama: authors list (link)
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Nuevo M, Milam SN, Sandford SA, Elsila JE, Dworkin JP (2009). "Formation of uracil from the ultraviolet photo-irradiation of pyrimidine in pure H2O ices". Astrobiology. 9 (7): 683–695. Bibcode:2009AsBio...9..683N. doi:10.1089/ast.2008.0324. PMID19778279.Pemeliharaan CS1: Banyak nama: authors list (link)
Nuevo M, Milam SN, Sandford SA, Elsila JE, Dworkin JP (2009). "Formation of uracil from the ultraviolet photo-irradiation of pyrimidine in pure H2O ices". Astrobiology. 9 (7): 683–695. Bibcode:2009AsBio...9..683N. doi:10.1089/ast.2008.0324. PMID19778279.Pemeliharaan CS1: Banyak nama: authors list (link)