Erik Brynjolfsson, Lorin Hitt, and Shinkyu Yang, “Intangible Assets: Computers and Organizational Capital”, Brookings Papers on Economic Activity, 2002, http://ebusiness.mit.edu/research/papers/138_erik_Intangible_Assets.pdf (по состоянию на 18 августа 2013 г.); Erik Brynjolfsson and Lorin M. Hitt, “Computing Productivity: Firm-level Evidence”, SSRN Scholarly Paper (Rochester, NY: Social Science research network, 2003), http://papers.ssrn.com/abstract=290325.
