@misc{Tlustý_Tomáš_Orel_2022,
 author={Tlustý, Tomáš},
 type={article},
 publisher={Jan Długosz University in Czestochowa},
 title={Orel – the Catholic gymnastics organization and its foreign relations between 1929 and 1948},
 address={Częstochowa},
 year={2022},
 language={eng},
}