Spectral analysis of seismic actions / A. Ravara.
Ravara, A.
Spectral analysis of seismic actions / A. Ravara. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [12]p. - Memoria; No.268 / Laboratorio Nacional de Engenharia Civil .
Spectral analysis of seismic actions / A. Ravara. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [12]p. - Memoria; No.268 / Laboratorio Nacional de Engenharia Civil .