MAZURKIEWICZ-SUŁKOWSKA, Julia. Language of employees of the Communist-era state security service in the Polish People’s Republic and the People’s Republic of Bulgaria (based on an analysis of “Bolek” and “Sabina” collaborators files). In: BURAS-MARCINIAK, Anetta; GOŹDŹ-ROSZKOWSKI, Stanisław (eds.). Specialized Languages in Intercultural Communication. Poland: Lodz University Press,2020. p. 119–131. DOI: 10.18778/8220-071-3.10. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1304/chapter/3991. Acesso em: 15 feb. 2026.