Väli, Ülo http://orcid.org/0000-0002-2247-0658
Dombrovski, Valery
Dzmitranok, Marina
Maciorowski, Grzegorz
Meyburg, Bernd-Ulrich
Article History
Received: 2 May 2018
Accepted: 16 January 2019
First Online: 28 February 2019
Competing Interests
: The authors declare no competing interests.