Chervinskii, S.
Drevinskas, R.
Karpov, D. V.
Beresna, M.
Lipovskii, A. A.
Svirko, Yu. P.
Kazansky, P. G.
Article History
Received: 28 April 2015
Accepted: 4 August 2015
First Online: 8 September 2015
Change Date: 27 January 2016
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has not been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.