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REFERENCES

  1. La Grange, J. L.: Oeuvres, vol. 6, pp. 262-292, Serrer and Darbaux, Paris, 1873, "Essai Sur Le Probleme bese Trois Corps" (L'Academie Royale de Sciences de Paris, vol.9,1772).
  2. Szebehely, V. G.: Theory of Orbits, the Restricted Problems of Three Bodies, Academic Press, New York, 1967, and Analytical and Numerical Methods of Celestial Mechanics, American Elsevier Publ. Co., N.Y.,1967, pp. 227,229.
  3. Katz, J. 1.: Numerical Orbits Near the Triangular Lunar Libration Points, Icarus, vol. 25, June 1975, pp. 336-359.
  4. Kamel, A. A.: Perturbation Theory Based on Lie Transforms and Its Application to the Stability of Motion near Sun-Perturbed Earth-Moon Triangular Libration Points, NASA CR-1622, 1970.
  5. Farquhar, R. W.: The Utilization of Halo Orbits in Advanced Lunar Operations, NASA TN D-6365, 1975.
  6. Ross, H. J., Jr., et al.: Compositional Data for Twenty-Two Apollo 16 Samples, Proceedings of the Fourth Lunar Science Conference, vol. 2, pp. 1149-1158.
  7. Chapman, C. R.: The Nature of Asteroids, Scientific American, vol. 232, Jan.1975, pp. 24-33.
  8. Wood, J. A.: Meteorites and the Origin of Planets, McGraw-Hill, N.Y., 1968.
  9. Gehrels, T., ed.: Physical Studies of Minor Planets, Washington, D.C., 1971, NASA SP-267.
  10. Dohnanyi, J. S.: Interplanetary Objects in Review: Statistics of their Masses and Dynamics, Icarus, vol. 17, no.1, Aug.1972, pp. 1-48.
  11. Wetherill, G. W.: Solar System Sources of Meteorites and Large Meteoroids, Ann. Rev. of Earth and Planetary Science, vol. 2, 1974.
  12. McCord, T. B., Chapman, C. R.: Asteroids: Spectral Reflectance and Color Characteristics, Astrophysical Journal, vol. 197, 1975, pp. 781-790.
  13. Middlehurst, B. M., Kuiper, G. P., ed.: The Solar System: Vol. 4, The Moon, Meteorites, and Comets. Univ. Chicago Press, 1963, Physics and Chemistry of Meteorites, Wood, J. A., pp. 337-401, Chapter 12. Chemical Evolution of Carbonaceous Chondrites, DuFresne, E. R., and Aners, E., Chapter 14. (Especially the tables on pp. 348 and 514) pp. 496-526.
  14. Ehricke, K. A.: Space Industrial Productivity, New Options for the Future, presentation before Sub-Committee on Space Science and Applications of the Committee on Science and Technology, U.S. House of Representatives, 94th Congress, Serial M, vol. 2, Sept. 1975.
  15. Sonett, C. P., Wilcox, J. M., Coleman, P. J., ed.: Solar Wind, a conference held at Pacific Grove, Calif., Mar. 21-26, 1971, NASA SP-308.
  16. Beischer, D. E., Reno, V. R.: Magnetic Fields and Man: Where do we Stand Today? North Atlantic Treaty Organization Advisory Group for Aerospace Research and Development (AGARD) Conference Proceedings, pt. 3, Special Biophysical Problems in Aerospace Medicine, no. 95, Luchon (France), 1971, pp. Cl2-1 to C12-9.
  17. Nakhil N'Itskaya, Z. N.: Biological Effect of Permanent Magnetic Fields, Kosmicheskaya Biologiya I Aviako Smicheskaya Meditsina, vol.8, no. 6, 1974, pp. 3-15.
  18. Comstock, G. M., et al.: Cosmic-Ray Tracks in Plastics: The Apollo Helmet Dosimetry Experiment, Science, vol. 172, Apr.9 ,1971, pp. 154-157.
  19. Basic Radiation Criteria, National Council Radiation Protection and Measurement, NCRR Report 39, 15 Jan., 1971, pp. 88-107.
  20. Martin, A., Harbison, S. A.: An Introduction to Radiation Protection, Chapman and Hall, London (England), 1972.
  21. Easley, C.W.: Basic Radiation Protection; Principles and Organization, Gordon and Breach, 1969.
  22. McKinley, D.W.: Meteor Science and Engineering, McGraw-Hill, New York, 1961, p. 274.
1 A metric ton, or tonne, is 10^6 g and equals 0.98 long tons and 1.10 short tons.

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