Omidvar,B , , Noorzad,A , , Rahimian,M , and Sanaeiha,A . "EFFECT OF EARTHQUAKE ON DISCRETE CRACK PROPAGATION IN SEFIDRUD DAM USING MULTI REGION DUAL BOUNDARY ELEMENT METHOD IN THE TIME DOMAIN", Sharif Journal of Civil Engineering, Volume 2-28, 4, 2012, 83-93.