| 1. | Report on the telecommunications market in Poland in 2011 [documento electrónico] / Office of Electronic CommunicationsData Publicação: 2012 Tema: Comunicações Eletrónicas |  | |
| 2. | Report on the coverage of the territory of the Republic of Poland with the existing telecommunications infrastructure [documento electrónico] : investments implemented in 2011 and planned for 2012, and buildings enabling collocation / Office of Electronic CommunicationsData Publicação: 2012 Tema: Comunicações Eletrónicas | | |