45–52. ISBN 978-0-231-11200-0. Institute of National Remembrance (Poland), Polska 1939–1945 Straty osobowe i ofiary represji pod dwiema okupacjami. Materski
[2020-12-23]. (原始内容存档于2021-06-04). Vodafone and TIM claim 5G firsts in Italy. TeleGeography. 2018-12-13 [2018-12-13]. (原始内容存档于2018-12-15). TIM launches