1. Mell, P.; Grance, T.: The NIST Definition of Cloud Computing. National Institute of Standards and Technology, Gaithersburg (2009)
2. Dawoud, W.; Takouna, I.; Meinel, C.: Infrastructure as a service security: challenges and solutions. In: 2010 the 7th International Conference on Informatics and Systems (INFOS), pp. 1–8. IEEE (2010)
3. Mohammed, D.: Security in cloud computing: an analysis of key drivers and constraints. Inf. Secur. J. 20(3), 123–127 (2011)
4. Saaty, T.L.: The Analytical Hierarchy Process, Planning, Priority. Resource Allocation. RWS Publications, Pittsburgh (1980)
5. Abdel-Basset, M.; Mohamed, M.; Chang, V.: NMCDA: a framework for evaluating cloud computing services. Future Gener. Comput. Syst. 86, 12–29 (2018)