Butterfly technique.mov - YouTube
https://www.youtube.com/watch?v=PWp2uy4QxW0

Butterfly - YouTube
https://www.youtube.com/watch?v=YdJl19MKugk

Видео по плаванию. Баттерфляй. Техника - YouTube
https://www.youtube.com/watch?v=MtZ1GYF6ErU

The Best Dolphin Kick Drill Ever. Period. - YouTube
https://www.youtube.com/watch?v=rAIRWXYX3s8

Ian Crocker style - YouTube
https://www.youtube.com/watch?v=GK0LA1KYG7E

Men's Swimming 100 Fly final from Athens - YouTube
https://www.youtube.com/watch?v=XOxh9PI2448