ȚÂRĂU, Virgiliu. Controlling and preventing the actions of the foreign agents. A relevant order for the county structures of the Securitate UM 0110 from 2nd of December 1989. Studia Universitatis Babeș-Bolyai Historia, [S. l.], v. 65, n. 2, p. 171–181, 2020. DOI: 10.24193/subbhist.2020.2.10. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbhistoria/article/view/620. Acesso em: 5 feb. 2025.