Nikitin, Sergey M.
Chigarev, Nikolay
Tournat, Vincent
Bulou, Alain
Gasteau, Damien
Castagnede, Bernard
Zerr, Andreas
Gusev, Vitalyi E.
Article History
Received: 27 November 2014
Accepted: 26 February 2015
First Online: 20 March 2015
Competing interests
: The authors declare no competing financial interests.