Ryzhov, Ivan I.
Kozlov, Gleb G.
Smirnov, Dmitrii S.
Glazov, Mikhail M.
Efimov, Yurii P.
Eliseev, Sergei A.
Lovtcius, Viacheslav A.
Petrov, Vladimir V.
Kavokin, Kirill V.
Kavokin, Alexey V.
Zapasskii, Valerii S.
Article History
Received: 10 November 2015
Accepted: 12 January 2016
First Online: 17 February 2016
Competing interests
: The authors declare no competing financial interests.