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4. ISACA (Information Systems Audit and Control Association): Control Objectives for Information and Related Technology (COBIT). 3rd Ed., http://www.isaca.org/cobit.htm , Abruf am 2003-03-26.
5. IT Governance Institute: Board Briefing on IT Governance. 2001, http://www.itgovernance.org/boardbriefing.pdf , Abruf am 2003-03-20.