1. https://csrc.nist.gov/publications/detail/sp/800-145/final
2. Subashini, S., Kavitha, V.: A survey on security issues in service delivery models of cloud computing. J. Netw. Comput. Appl. 34(1), 1–11 (2011)
3. Mohamed, E.M., Abdelkader, H.S., El-Etriby, S: Enhanced data security model for cloud computing. In: 2012 8th International Conference on Informatics and Systems (INFOS) (pp. CC-12). IEEE (2012)
4. Modi, C., et al.: A survey on security issues and solutions at different layers of cloud computing. J. Supercomput. 63(2), 561–592 (2013)
5. Chou, T.-S.: Security threats on cloud computing vulnerabilities. Int. J. Comput. Sci. Inf. Technol. 5(3), 79 (2013)