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Brenner S; Barnett L; Katz ER; Crick FHC (1967). »UGA: A third nonsense triplet in the genetic code«. Nature. 213 (5075): 449–450. doi:10.1038/213449a0. PMID6032223.
Brenner S; Stretton AOW; Kaplan S (1965). »Genetic Code: The 'Nonsense Triplets' for chain termination and their suppression«. Nature. 206 (988): 994–998. doi:10.1038/206994a0. PMID5320272.
Brenner S; Barnett L; Katz ER; Crick FHC (1967). »UGA: A third nonsense triplet in the genetic code«. Nature. 213 (5075): 449–450. doi:10.1038/213449a0. PMID6032223.