Melnikova, L.I., A.V. Marchuk, and S.V. Shtangei. “Ukrainian Internet Service Providers Ranking: Multi‑criteria Model Incorporating Cybersecurity”. Radiotekhnika, no. 222 (September 18, 2025): 89–97. Accessed December 5, 2025. http://rt.nure.ua/article/view/343514.