1. 1) NAKAMURA S. A Study on Autonomous Landing of an Unmanned Helicopter Using Active Vision and GPS. Journal of the Robotics Society of Japan. (2000) vol.18, no.2, p.94-102.
2. 2) HAZAWA K. Autonomous Flight Control of Hobby-Class Small Unmanned Helicopter : Trajectory Following Control by Using Preview Control Considering Heading Direction. Journal of the Robotics Society of Japan. (2006) vol.24, no.3, p.94-101.
3. 3) ZHANG H. Visual servoing with dynamics : Control of an unmanned blimp. Proceedings of IEEE International Conference on Robotics and Automation, 1999-5. (1999) p.618-623.
4. 4) GRASMEYER J. M. Development of the black widow micro air vehicle. (2001) p.1-9.
5. 5) The Cyclogyros-Planned paddle-wheel aeroplanes. http://www.dself.dsl.pipex.com/MUSEUM/TRANSPORT/cyclogyro/cyclogyro.htm.