The information requirements for aerospace defence : the limits imposed by geometry and technology /
Lindsey, George,1920-
Lancaster :     Centre for Defence and International Security Studies, Cartmel College, Lancaster University,
c1997.
Includes bibliographical references (p. 43-46).
Air defenses.
Ballistic missile defenses.
Military surveillance.
Military intelligence.
Astronautics, Military.
Antimissile missiles.