Note: The original of this document, linked just below here, is riddled with typos, making it a painful, slow read. I have cleaned it up extensively. It still needs work and I will continue to edit it as my time, patience and interest persist.
Nosenko: Five paths to judgement
http://intellit.muskingum.edu/alpha_folder/H_folder/Heuer_on_NosenkoV1.pdf
Richards J. Heuer, Jr., "Nosenko: Five Paths to Judgment," Studies in Intelligence, vol. 31, no. 3 (Fall 1987), pp. 71-101. Origin