VĂcha, J.
Foroutan-Nejad, C. http://orcid.org/0000-0003-0755-8173
Straka, M. http://orcid.org/0000-0002-7857-4990
Article History
Received: 10 September 2018
Accepted: 15 March 2019
First Online: 9 April 2019
Competing interests
: The authors declare no competing interests.