Chatzarakis, George E.
Jadlovská, Irena http://orcid.org/0000-0003-4649-5611
Article History
Received: 12 April 2018
Revised: 23 August 2018
Accepted: 21 December 2018
First Online: 5 January 2019
Funding
: The work on this research has been supported by the Grant project KEGA 035TUKE-4/2017.