https://www.youtube.com/watch?v=c8anwsNCrIc&feature=youtu.be 2.měs.
https://www.youtube.com/watch?v=bhb6PEq9Ta0&feature=youtu.be&fbclid=IwAR39ER_wl-fCukys5Lnu9hJMW69PL-3TuS5h2z8_Z2NMxzIm5X0C46MNQA0 - první pernatá
https://www.youtube.com/watch?v=9ng3qafJBcU&feature=youtu.be - 9.měs.
