2Curino C, Jones E, Popa R et al. Relational Cloud: A Database- as - a - Service for the Cloud. 5th Conf. on Innovative Data Systems Research, CIDR 2011, January 9 - 12, 2011 Asilomar, California.
3Choubey R, Dubry R, Bhattacharjee J. A Survey on Cloud Comput-ing Security Challenges and Threats. Int. Journal on Computer Scienceand Engineering, 2011, 3 (3): 1227-1231.
4Dudin E, Smetanin Y. A Review of Cloud Computing [J]. Scientific and Technical Information Processing, 2011, 38 (4): 280-284.
5Zhaag Q, Cheng L, Boutaba R. Cloud Computing: State - of- the Art and Research Challenge. Journal of Intemet Serv Appl, 2010, 1: 7- 18.
6Hamlen K, Kantarcioglu M, Khan Let al. Security Issues for Cloud Computing [J]. Intematioual Journal of Infonnatiou Security and Privacy, 2010, 4 (2): 39-51.
7Ma H, Schewe'K, Thalheim Bet el. A Formal Model for the Intevop- embility of Service Clouds. Service Oriented Computing and Applications, Online First, 18 Jan 2012.
