Ambrogelly A, Palioura S, Söll D (January 2007). "Natural expansion of the genetic code". Nature Chemical Biology. 3 (1): 29–35. doi:10.1038/nchembio847. PMID17173027.
Ambrogelly A, Palioura S, Söll D (January 2007). "Natural expansion of the genetic code". Nature Chemical Biology. 3 (1): 29–35. doi:10.1038/nchembio847. PMID17173027.