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Strukturel makroøkonomi : netværksteori og input-output
Olsen, J. A., (1985)
Input-output models, directed graphs and flows in networks
Olsen, J. A., (1992)
Input-output modeling and resource use projection
Jones, Lonnie L., (1997)
Effective work breakdown structures
Haugan, Gregory Ticknor, (2002)
Work breakdown structures for projects, programs, and enterprises
Haugan, Gregory Ticknor, (2008)