GRUSZCZAK, Artur (RED.). Security Outlook 2018. Poland: Wydawnictwo Księgarnia Akademicka,2019. v. Societas, Vol. 121 DOI: 10.12797/9788381380843. Disponível em: https://books.akademicka.pl/publishing/catalog/book/90. Acesso em: 2 sty. 2026.