<ul><li><a href=https://www.zakonyprolidi.cz/cs/1991-455/zneni-20220701 target=_blank>Trade Licensing Act(Živnostenský zákon, Act No. 455/1991 Coll., last update on 1 July 2022, § 9 (b), 19, 20, Annex 1)</a></li><li><a href=http://uok.msmt.cz/uok/ru_detail.php?id=355&dl=cz&flet=&forg=&ftype=&fpg=1&ftxt=komun target=_blank>Website of the Ministry of Education, Database of Regulated Professions</a></li></ul>