Well, "Phantom versus MiG-21 (Fighter Performance in Practice) appeared at Amazon...
Amazon.com: Phantom versus MiG-21: How to do split-S in MiG-21 within 3000 ft and Unexploited low speed maneuverability (Fighter Performance in Practice): dipl. ing. Predrag Pavlovic, dipl. ing. Nenad Pavlovic: Books
Amazon.com: Phantom versus MiG-21: How to do split-S in MiG-21 within 3000 ft and Unexploited low speed maneuverability (Fighter Performance in Practice): dipl. ing. Predrag Pavlovic, dipl. ing. Nenad Pavlovic: Books