1. Andrieux, A., et al.: Web Services Agreement Specification (WS-Agreement). In: Grid Forum Document GFD.107, Open Grid Forum (2007)
2. Dalheimer, M., Pfreundt, F.-J.: GenLM: License Management for Grid and Cloud Computing Environments. In: Proceedings of the CCGrid conference 2009 (2009)
3. Dong, X., Wang, Y., Zheng, F., Guo, H., Yang, S., Wu, W.: Floating license sharing system in grid environment. In: SKG, p. 96. IEEE Computer Society, Los Alamitos (2005)
4. Lecture Notes in Computer Science;X. Dong,2006
5. Flexera WebSite, http://www.flexerasoftware.com/products/flexnet-manager.htm