Kalmár-Nagy, Tamás http://orcid.org/0000-0003-1374-2620
Bak, Bendegúz Dezső
Funding for this research was provided by:
Budapest University of Technology and Economics
Article History
Received: 3 July 2018
Accepted: 20 December 2018
First Online: 17 January 2019
Compliance with ethical standards
:
: The authors declares that they have no conflict of interest.