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Budgeting : profit planning and control
Welsch, Glenn A., (1957)
Le Budget de l'Entreprise
Loeb, Paul, (1956)
Managerial finance
Weston, J. Fred, (1962)
Expected critical path lengths in PERT networks
Fulkerson, D. R., (1962)
Flow networks and combinatorial operations research
Fulkerson, D. R., (1972)
Flows in networks
Fulkerson, D. R., (1963)