Miura, Masashi
Maiorov, Boris
Balakirev, Fedor F.
Kato, Takeharu
Sato, Michio
Takagi, Yuji
Izumi, Teruo
Civale, Leonardo
Article History
Received: 15 September 2015
Accepted: 4 January 2016
First Online: 8 February 2016
Competing interests
: The authors declare no competing financial interests.