Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Eugene V. Koonin and Artem S. Novozhilov,Origin and evolution of the genetic code: The universal enigma,IUBMB Life,1521-6543,Wiley,2008-12-31,61,2,99-111,https://cir.nii.ac.jp/crid/1363670319492441344,https://doi.org/10.1002/iub.146