Funding for this research was provided by:
Fakulta ?ivotn?ho Prost?ed?, ?esk? Zem?d?lsk? Univerzita v Praze (42300/1312/423154)
Univerzite Jan Evangelista Purkyne v ?st? nad Labem (SGS-173-07-06)
Article History
Received: 13 June 2018
Accepted: 21 January 2019
First Online: 2 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.