Rissanen, Joona
Korobko, Dmitry A.
Zolotovsky, Igor O.
Melkumov, Mikhail
Khopin, Vladimir F.
Gumenyuk, Regina
Article History
Received: 16 November 2016
Accepted: 3 February 2017
First Online: 10 March 2017
Competing interests
: The authors declare no competing financial interests.