فهرس المقالات frequency-magnitude distribution حرية الوصول المقاله صفحة الملخص نص كامل 1 - Seismic study and spatial observations of a & b – values for the different earthquake hazard zones of India Narayanakumar Somasundaram Surendra Nadh Somala Evgenii Rogozhin Svetlana Rodina 10.30495/ijes.2020.677472
