List of Articles protection system Open Access Article Abstract Page Full-Text 1 - Online Estimation of Transient Stability in a Two-Area Power System Based on Local and Wide-Area Measurements M. Arabzadeh H. Seifi Mohammad Kazem Sheikh El Eslami Open Access Article Abstract Page Full-Text 2 - Strengthening of Power Grid Protection Systems Against Cyber-Attacks: A Comprehensive Review Zahra Pourahmad R. Hooshmand S. Mohammad Madani