1. BOBRO, Dmytro. 2017. Improvement of the methodology for ranking critical infrastructure facilities and their classification as critical infrastructure. Available online. In: http://old2.niss.gov.ua/content/articles/files/krutuchna_infra-a7636.pdf. Consultation date: 10/05/2021.
2. CHUMACHENKO, Serhii. 2017. “Natural-technogenic threat assessment for critical infrastructures objects” In: Scientific bulletin: Civil protection and fire safety. Vol. 1, No. 3, pp. 41-47.
3. CRITICAL INFRASTRUCTURE PROTECTION. 2020. Force point Security Report. Available online. In: https://www.forcepoint.com/es/cyber-edu/critical-infrastructure-protection-cip. Consultation date: 05/05/2021.
4. CRITICAL INFRASTRUCTURE PROTECTION. 2021. The European Commission's science and knowledge service. Brussels. Available online. In: https://ec.europa.eu/jrc/en/research-topic/critical-infrastructure-protection. Consultation date: 08/05/2021.
5. CYBER SECURITY STRATEGY. 2016. Federal Office of Civil Protection and Disaster Assistance (BBK). Available online. In: https://www.enisa.europa.eu/media/news-items/german-cyber-security-strategy-2011-1. Consultation date: 08/05/2021.