1. Azadeh A, Ghaderi SF, Izadbakhsh H (2008) Integration of DEA and AHP with computer simulation of railway systems improvement and optimization. J Appl Math Comput 195:775–785
2. Bekkers V, Homburg V (2005) E-government as an information ecology: backgrounds and concepts. In: Bekkers V, Homburg V (eds) E-government as institutional and technological innovation in public administration. IOS Press, Amsterdam, pp 1–20
3. Benyoucef M, Canbolat M (2007) AHP-based supplier selection in e-procurement. Int J Serv Oper Manag 3:172–192
4. Chen CT, Lin CT, Huang SF (2006) A fuzzy approach for supplier evaluation and selection in supply chain management. Int J Prod Econ 102:289–301
5. Graafland-Essers I, Ettedgui E (2003) Benchmarking e-government in Europe and the US. Statistical Indicators Benchmarking the Information Society, Bonn, Germany