1. Staylor, W. F., Brooks, D. R., and Pritchard, E. B., J. Spacecraft Rockets
7 (1970), 814.
2. Mueller, G. E., Astronaut. Aeronaut.
8 (1970), 30.
3. Eggers, A. J., Jr. and Swenson, B. L., Astronaut. Aeronaut.
5 (1967), 24.
4. Luidens, R. W., Burley, R. R., Eisenberg, J. D., Kappraff, J. M., Miller, B. A., Shovlin, M. D., and Willis, E. A., Jr., ‘Manned Mars Landing Mission by Means of High-Thrust Rockets’, NASA TN D-3181, January 1966.
5. Brooks, D. R. and Harrison, E. F., ‘Use of Orbit-to-Orbit Shuttles for Hyperbolic Rendezvous with Returning Planetary Spacecraft’, NASA TN D-6342, September 1971.