1. Environmental Regulation and the Competitiveness of U.S;Jaffe;Manufacturing: What Does the Evidence Tell Us?. Journal of Economic Literature,1995
2. Project portfolio management for product innovation;Killen;International Journal of Quality & Reliability Management,2008
3. Nissan. (2013). “New Release”. Nissan. Available at http://www.nissan-global.com/JP/NEWS/2013/_STORY/130826-05-j.html, (accessed on 10 April, 2015).
4. Tightening Environmental Standards: The Benefit-Cost or the No-Cost Paradigm?;Palmer;Journal of Economic Perspectives,1995
5. Porter, M.E. & Linde, C.V. D. (1995a). Green and Competitive: Ending the Stalemate. Harvard Business Review, (September-October), 120-134.