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Christensen D S
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Christensen D S
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Christensen D.S. An analysis of costs overruns on defense acquisition contracts // International Journal of Project Management. 1993. Vol. 24. N 3. P. 43 48.
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Christensen D.S. The estimate at complete problem: a review of three studies // International Journal of Project Management. 1993. Vol. 24. N 1. P. 37 42.
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