1. Armstrong, M. (1998). Network interconnection in telecommunications. Economic Journal, 108, 545–564.
2. Armstrong, M. (2002). The theory of access pricing and interconnection. In Cave, M.E., et al. (Eds.) Handbook of telecommunications economics (Vol. 1). Elsevier Science B.V.
3. Armstrong, M., & Wright, J. (2009). Mobile call termination. Economic Journal, 119(538), 270–307.
4. Asteriou, D., & Hall, S.G. (2011). Applied econometrics. London: Palgrave Macmillan.
5. Baltagi, B.H. (2005). Econometric analysis of panel data, 3rd edn. England: Wiley.