Funding for this research was provided by:
Scientific Grant Agency of Ministry of Education of the Slovak Republic and Slovak Academy of Sciences – VEGA, Project (No. 2/0077/18)
Article History
Received: 7 May 2017
Accepted: 16 May 2018
First Online: 4 June 2018
Change Date: 25 June 2018
Change Type: Correction
Change Details: The original version of this article has been corrected to reflect the proper rendering of Fig. 1 after it was reported by the author that Fig. 1 was not loaded properly and did not show all of the necessary information. The original article has been corrected.
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.