1. Armstrong, M., “The theory of access pricing and interconnection,” Handbook of Telecommunications Economics, vol. 1, pp. 297–386, 2002.
2. Armstrong M., Doyle, C., and Vickers, J., “The access pricing problem: a synthesis,” Journal of Industrial Economics, vol. 44 no.2, pp. 131–150, 1996.
3. Baumol, W.J., Panzar, J.C., and Willig, R.D., “Contestable markets and the theory of industry structure,” Academic Press: San Diego, 1988.
4. Behringer, S., “Essays in Applied Microeconomics Theory,” PhD Dissertation, University of Mannheim, 2004.
5. Boiteux, M., “Sur la Gestion Des Monopoles Publics Astreints a l'Equilibre Budgetaire,” Econometrica, vol. 24 no. 1, pp. 22–40, 1956