1. Formation Flight of Birds
2. Aerodynamic aspects of formation flight in birds
3. 3) Shevell, R. S.: Fundamentals of Flight, 2nd ed., Prentice Hall, United States of America, 1988.
4. 4) Fowler, J. M. and D’Andrea, R.: A Formation Flight Experiment, IEEE Control Systems Magazine, 23 (2003), pp. 35–43.
5. 5) Giulietti, F., Pollini, L. and Innocenti, M.: Autonomous Formation Flight, IEEE Control Systems Magazine, 20, 6 (2000), pp. 34–44.