Z.  Wu, Ellram, L., and Schuchard, R., ?Understanding the Role of Government and Buyers in Supplier Energy Efficiency Initiatives?, Journal of Supply Chain Management, vol. 50, no. 2, pp. 84-105, 2014.

J.  Sarkis, Park, J., and Wu, Z., ?Unlocking Business Value from an Integrated Management Approach to IT, Environment, and Supply Chain?, 2009.