REFERENCES
- Zwicky (F). Tasks We Face. J. of the American Rocket Society. March; 1951; 3.
- Glossary of Guided Missile Terms. Prepared by the Committee on Guided Missiles. 20 September, 1949. P 49.
- Merrill (G), Goldberg (H) and Helmholz (RH). Operations Research, Armament, Launching, Principles of Guided Missile Design Series. 1956. Van Nostrand. P 28.
- Hudson (RD) Jr. Infrared System Engineering. 1969. Wiley-interscience. P 419.