Rogalski, Maciej. „Communications Interception and Obtaining Telecommunications Billings by Authorised Entities Within Their Operational and Intelligence Activities in Poland”. Ius Novum 10, no. 2 (czerwiec 30, 2016): 126-141. Udostępniono grudzień 8, 2021. https://iusnovum.lazarski.pl/iusnovum/article/view/1136.