1. A concept Study of a Remotely Piloted Vehicle for Mars Exploration. NASA CR-157942,1978.
2. Guynn, M. D., Croom, M. A., Smith, S. C., Parks, R. W., Gelhausen, P. A. Evolution of a Mars Airplane Concept for the ARES Mars Scout Mission. AIAAPaperNo.2003-6578,September,2003.