1. Accenture. (2011). Achieving high performance in the postal industry: Accenture research and insights 2011. Accenture.
2. An Post. (2012). Application for changes to charges for universal services weighing less than 50 g in accordance with the Communications Regulation (Postal Services) Act No. 21 of 2011. Dublin.
3. AstraZeneca AB and AstraZeneca plc v. European Commission, C 457-10/P (European Court of Justice, 6 Dec 2012).
4. Buigues, P. A., & Rey, P. (2004). The economics of antitrust and regulation in telecommunications. Cheltenham: Edward Elgar.
5. Card, D., Hatzitaskos, K., & Howell, V. (2013). Guidelines on quantitative techniques for competition analysis. CRC America Latina.