1. “Response History Analysis of Structures with Seismic Isolation and Energy Dissipation Systems: Verification Examples for Program SAP2000”, Scheller J, Constantinou M, MCEER-99-0002, Feb, 1999
2. ADINA User Interface Command Reference Manual, Vol 1, Report ARD 00-2, August, 2000, ADINA R&D, Watertown, MA
3. Finite Element Procedures;Bathe,1996