M.A.Rapp.The utility business model and the future of computing services。IBM System Journal：Utility Computing 2004.Volume 43 ,  Issue 1:32 - 42 

链接：http://portal.acm.org/citation.cfm?id=1014718

或者：http://domino.research.ibm.com/tchjr/journalindex.nsf/e90fc5d047e64ebf85256bc80066919c/3d7c0661a4bf79a485256e2f007b1078?OpenDocument

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