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Authors
Artyukhov, Vasilii I.
Penev, Evgeni S.
Yakobson, Boris I.
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Article History
Received: 8 May 2014
Accepted: 1 August 2014
First Online: 16 September 2014
Change Date: 3 October 2014
Change Type: Update
Change Details: The HTML version of this Article previously published contained an error in the punctuation of the author name Vasilii I. Artyukhov, which was incorrectly given as Vasilii I/Artyukhov. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.
Competing interests
: The authors declare no competing financial interests.
