The incredible Pugachev's Cobra Maneuvre | MiGFlug.com Blog
The Unknown Story of the Syrian MiG-21 Pilot who Developed the Cobra Manoeuvre: i.e. Pugachev Wasn't the First to Perform the Cobra - The Aviation Geek Club
Cobra maneuver - Wikipedia
Here's Why the Russian Sukhoi Su-27 Has Withstood the Test of Time | War History Online