Nyzio, Arkadiusz. 2019. “The Internal Security of Poland in 2018 – Key Changes and Events . 105”. In Security Outlook 2018, edited byArtur Gruszczak, Societas, Vol. 121:105-26. Societas. Poland: Księgarnia Akademicka Publishing. https://doi.org/10.12797/9788381380843.05.