TY - JOUR TI - A model to protect disaster recovery centers from cyber threats with multi-layered network security architecture AU - YILMAZ, A. AU - GÜNEŞ, A. JO - Sigma Journal of Engineering and Natural Sciences PY - 2025 VL - 43 SP - 2108 EP - 2126 DO - 10.14744/sigma.2025.1907 ER -