%0 Journal Article %T Assessment and Code Considerations for the Combined Effect of Seismic Base Isolation and Viscoelastic Dampers %A Aykut Erkal %A Semih S. Tezcan %A Debra F. Laefer %J ISRN Civil Engineering %D 2011 %I Hindawi Publishing Corporation %R 10.5402/2011/861451 %U http://dx.doi.org/10.5402/2011/861451