. Capgemini, The User Challenge: Benchmarking The Supply of Online Public Services, 7th Measurement, European Commission Directorate General for Information Society and Media, 2007.

Å. Grönlund and A. Andersson, E-government research 2003-2006: Improvements and issues Current Issues and Trends in E-Government Research, pp.247-288, 2007.

S. S. Dawes, Governance in the digital age: A research and action framework for an uncertain future, Government Information Quarterly, vol.26, issue.2, pp.257-264, 2009.
DOI : 10.1016/j.giq.2008.12.003

Å. Grönlund, Introducing e-Gov: History, Definitions, and Issues, Communications of AIS, vol.15, 2005.

D. M. West, Global E-government-2003, 2003.

K. Layne and J. Lee, Developing fully functional E-government: A four stage model, Government Information Quarterly, vol.18, issue.2, pp.122-136, 2001.
DOI : 10.1016/S0740-624X(01)00066-1

M. Bovens, Public Sector Accountability The Oxford handbook of public management, pp.182-208, 2005.

M. Smith, M. E. Noorman, and A. K. Martin, Accountabilities, automations, Dysfunctions, and Values: ICTs in the public sector, London School of Economics Working paper series, vol.169, 2008.

V. Pina, L. Torres, and B. Acerete, Are ICTs promoting government accountability?: A comparative analysis of e-governance developments in 19 OECD countries, Critical Perspectives on Accounting, vol.18, issue.5, pp.583-602, 2007.
DOI : 10.1016/j.cpa.2006.01.012

J. R. Gil-garcia and I. J. Martinez-moyano, Understanding the evolution of e-government: The influence of systems of rules on public sector dynamics, Government Information Quarterly, vol.24, issue.2, pp.266-290, 2007.
DOI : 10.1016/j.giq.2006.04.005

P. Gottschalk, Maturity levels for interoperability in digital government, Government Information Quarterly, vol.26, issue.1, pp.75-81, 2009.
DOI : 10.1016/j.giq.2008.03.003

L. Guijarro, Interoperability frameworks and enterprise architectures in e-government initiatives in Europe and the United States, Government Information Quarterly, vol.24, issue.1, pp.89-101, 2007.
DOI : 10.1016/j.giq.2006.05.003