Khakpour, B. A., Zomorrodian, M., Sadeghi, S., & Moghaddami, A. "The Analysis of physical–structural vulnerability of the Ninth District of Mashhad from a seismological perspective" .e27690 , Journal of Geography and Regional Development, 9, 1, 2011, e27690. doi: 10.22067/geography.v9i16.11025