Balkova, Radka
Kucera, Frantisek
Jancar, Josef
Funding for this research was provided by:
Ministerstvo Školství, Mládeže a Tělovýchovy (FCH-S-19-6100)
Article History
Received: 22 August 2019
Revised: 9 December 2019
Accepted: 9 April 2020
First Online: 3 May 2020