Kalinkovich, Alexander
Gabdulina, Gulzan
Livshits, Gregory
Article History
First Online: 29 November 2018
Compliance with ethical standards
: The manuscript has not been published, it is not under consideration for publication elsewhere, its publication is approved by all authors, and if accepted, it will not be published elsewhere including electronically in the same form, in English or in any other language, without the written consent of the copyright-holder.
: The authors declare that that they have no competing interests.