8A.Toni,& A. Meneghetti. Traditional and Innovative Paths Towards Time-based Competition [J]. International Journal of Production Economics ,2000, (66).
9D.Prabuddha,et al. The Discrete Time-Cost Tradeoff Problem Revisited [J].European Journal of Operational Research, 1995, (81).
10G.Stalk. Time: The Next Source of Competitive Advantage[J]. Harvard Business Review,1988,(July-August).