%0 Journal Article %A Seyrafian, Sarang %A Gatmiri, Behrouz %A Noorzad, Asadollah %D 2007 %J Computer Modeling in Engineering \& Sciences %@ 1526-1506 %V 21 %N 3 %P 209--218 %T Analytical Investigation of Depth Non-homogeneity Effect on the Dynamic Stiffness of Shallow Foundations %M doi:10.3970/cmes.2007.021.209 %U http://www.techscience.com/CMES/v21n3/25043