Bertero, V. V., Anderson, J. C., Krawinkler, H., & Miranda, E. (1991). Design guidelines for ductility and drift limits: Review of state-of-the practice and drift-based earthquake-resistant design of buildings. Berkeley: Earthquake Engineering Research Center University of California.

Bertero, Vitelmo Victorio, James C. Anderson, Helmut Krawinkler, and Eduardo Miranda. Design Guidelines for Ductility and Drift Limits: Review of State-of-the Practice and Drift-based Earthquake-resistant Design of Buildings. Berkeley: Earthquake Engineering Research Center University of California, 1991.

Bertero, Vitelmo Victorio, James C. Anderson, Helmut Krawinkler, and Eduardo Miranda. Design Guidelines for Ductility and Drift Limits: Review of State-of-the Practice and Drift-based Earthquake-resistant Design of Buildings. Berkeley: Earthquake Engineering Research Center University of California, 1991.