1. Akcay, B., 2006. Public Sector in the Financing of Infrastructure Investment. Presentation in Public Infrastructure Investment Finance through Capital Markets Conference [http://www.spk.gov.tr/filesys/kaf/sunumlar/BelginAkcay.pdf, last access March 14, 2016], Ankara, Turkey.
2. Finding long-term solutions to financing 21st century infrastructure needs- a think piece;Beck;Road Transp. Res.,2015
3. Risk Allocation to the construction firm within a private finance initiative (PFI) project;Birnie;ARCOM Conf. Proc.,1997
4. Comparison of construction contract prices for traditionally procured roads and public-private partnerships;Blanc-Brude;Rev. Ind. Organ.,2009
5. Bousquet, F., Fayard, A., 2001. Road Infrastructure Concession Practice in Europe.