Science (New York, N.Y.) (2008) - Comment
pubmed: 18369150  doi: 10.1126/science.1154330  issn: 1095-9203  issn: 0036-8075 

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Sergiy Sylantyev, Leonid P Savtchenko, Yin-Ping Niu, Anton I Ivanov, Thomas P Jensen, Dimitri M Kullmann, Min-Yi Xiao, Dmitri A Rusakov