Dzhelepov, Georgi
Dokuzova, Iva http://orcid.org/0000-0002-9099-6969
Funding for this research was provided by:
Plovdiv University ”Paisii Hilendarski” (FP17-FMI-008 of the Scientific Research Fund)
Article History
Received: 6 September 2018
Revised: 25 October 2018
First Online: 9 November 2018
Compliance with ethical standard
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.