Kitrar, Liudmila http://orcid.org/0000-0002-6383-9562
Lipkind, Tamara http://orcid.org/0000-0003-2632-9026
Ostapkovich, Georgy http://orcid.org/0000-0003-2793-0446
Article History
Received: 1 October 2018
Accepted: 22 January 2020
First Online: 28 January 2020