1. Kazem, H., Ghafory‐Ashtiany, M. and Tehranizadeh (1998, “Dynamic characteristic of Khorjini semi‐rigid using forced vibration test of 1/2 scale model of four‐storey steel structure”, 11th European Conference on Earthquake Engineering; Proceedings of the Conference, 6‐11 September, Balkema, Paris.
2. Nikzad, KH., Ghafory‐Ashtiany, M. and Hesami‐Azar, K.H.et al. (1998), Ghaen‐Birjand Earthquake of 1997, IIEES Report No. 76‐98‐1, IIEES, Tehran.