*Peer Henrik Hansen (2005). "A Review of: 'Falling Flat on the Stay-Behinds'". International Journal of Intelligence and CounterIntelligence. 19 (1): 182–186. doi:10.1080/08850600500332656.
*Peer Henrik Hansen (2005). "A Review of: 'Falling Flat on the Stay-Behinds'". International Journal of Intelligence and CounterIntelligence. 19 (1): 182–186. doi:10.1080/08850600500332656.
*Rowland Evans, Robert Novak (20 February 1979). "'Dirty tricks' by Russians seen as spur". Lawrence Journal-World. Seite 4
*Rowland Evans, Robert Novak (20 February 1979). "'Dirty tricks' by Russians seen as spur". Lawrence Journal-World. Seite 4
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*Fernando Gozales, "Top Secret, Documentos secretos del Pentágono (FM 30-31 B)", Triunfo, 23.9.1978, S. 28ff