1. Chellappa, R.K. (1997), Intermediaries in Cloud-Computing: A New Computing Paradigm, INFORMS Annual Meeting.
2. Destefani Neto, M. (2014), A brief history of cloud computing. Retrieved from https://www.ibm.com/blogs/cloud-computing/2014/03/a-brief-history-of-cloud-computing-3/.
3. Draoli, M. (2014), D3.2 - Public Sector Study. FP7-610650 Cloud for Europe. Retrieved from http://www.cloudforeurope.eu/documents/10179/40740/Public+sector+study/6408e32b-dfe9-4f13-b1bc-e410ecb71323.
4. EAR Online, Position Paper. Doelarchitectuur Rijks Application Store(RAS). Retrieved from http://www.earonline.nl/images/earpub/1/1f/140501_Position_Paper_RAS_-_Definitief.pdf.
5. European Commission (2010), Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. A Digital Agenda for Europe. Retrieved from http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52010DC0245R(01)&From=EN.