Todorov, Petko http://orcid.org/0000-0002-7998-7391
Vartanyan, Tigran http://orcid.org/0000-0002-3956-9232
Andreeva, Christina http://orcid.org/0000-0001-5549-2485
Sarkisyan, David http://orcid.org/0000-0002-3432-0796
Pichler, Goran http://orcid.org/0000-0002-1672-8560
Cartaleva, Stefka http://orcid.org/0000-0002-1518-7790
Funding for this research was provided by:
Ministry of Education, Youth and Science (DO08-19/2016;DNTS/Russia 01/5)
Ministry of Science and Higher Education of the Russian Federation (RFBR grant No17-52-18037)
Article History
Received: 18 October 2019
Accepted: 10 February 2020
First Online: 25 February 2020