Leonov, I.
Poteryaev, A. I.
Gornostyrev, Yu. N.
Lichtenstein, A. I.
Katsnelson, M. I.
Anisimov, V. I.
Vollhardt, D.
Article History
Received: 17 March 2014
Accepted: 6 June 2014
First Online: 7 July 2014
Competing interests
: The authors declare no competing financial interests.