1. Aerosty J., 1962. Sphere drag on a low density flow, NASATR HE-150-192.
2. Bailey A.B., Hiatt J., 1971. Free-flight measurements of sphere drag at subsonic, transonic, supersonic, and hypersonic speeds for continuum, transition, and near-free-molecular flow conditions, AEDC-TR-70-291.
3. Sphere drag coefficients for a broad range of Mach and Reynolds numbers;Bailey;AIAA J.,1972
4. Sphere drag at transonic speeds and high Reynolds numbers;Bailey;AIAA J.,1976
5. Resistance to the motion of a small sphere moving through a gas;Baines;Not. r. Astron. Soc.,1965