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| long-range operation of indefinite duration (англ. термин взят из статьи: Edbrook C.D. Principles of deep cover // Studies in Intelligence. – Vol. 5. – Issue: Summer. – CIA, 1961. – pp. 1 – 29 (declassified in 1995). Alex_Odeychuk) | |||
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| long-range operation of indefinite duration (англ. термин взят из статьи: Edbrook C.D. Principles of deep cover // Studies in Intelligence. – Vol. 5. – Issue: Summer. – CIA, 1961. – pp. 1 – 29 (declassified in 1995). Alex_Odeychuk) | |||