<https://library.upol.cz/arl-upol/en/detail-upol_us_auth-m0134714-Ondrejova-Dana-1980/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://library.upol.cz/arl-upol/en/detail/?&idx=upol_us_cat*0205342&iset=1&disprec=6>