Vďačný, Peter
Rajter, Ľubomír
Shazib, Shahed Uddin Ahmed
Jang, Seok Won
Shin, Mann Kyoon http://orcid.org/0000-0001-6592-1204
Article History
Received: 5 June 2017
Accepted: 26 July 2017
First Online: 30 August 2017
Competing Interests
: The authors declare that they have no competing interests.