Polimirova, Dimitrina, Velizar Shalamanov, Nikolai Stoyanov, Todor Tagarev, Yantsislav Yanakiev, George Sharkov, Yavor Papazov, Vasil Rizov, and Krassimira Ivanova. Cyber Security and Opportunities for Application of Innovative Technologies in the work of the State Administration in Bulgaria. Sofia: Bulgarian Academy of Sciences, 2018.