Rybin, Mikhail V.
Filonov, Dmitry S.
Belov, Pavel A.
Kivshar, Yuri S.
Limonov, Mikhail F.
Article History
Received: 18 November 2014
Accepted: 3 February 2015
First Online: 5 March 2015
Competing interests
: The authors declare no competing financial interests.