Kravets, V. G.
Jalil, R.
Kim, Y.-J.
Ansell, D.
Aznakayeva, D. E.
Thackray, B.
Britnell, L.
Belle, B. D.
Withers, F.
Radko, I. P.
Han, Z.
Bozhevolnyi, S. I.
Novoselov, K. S.
Geim, A. K.
Grigorenko, A. N.
Article History
Received: 15 April 2014
Accepted: 13 June 2014
First Online: 1 July 2014
Competing interests
: The authors declare no competing financial interests.