Nanotechnology (2009) - Comment
doi: 10.1088/0957-4484/20/50/505606  issn: 0957-4484  issn: 1361-6528  pubmed: 19923653 

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Min Zhou, Baoxiang Wang, Zbigniew Rozynek, Zhaohui Xie, Jon Otto Fossum, Xiaofeng Yu, Steinar Raaen