use of modal analysis in the mechanical characterization of- rock masses / Fernando de Mello Mendes, L. Aires de Barros-, F. Peres Rodrigues.
Mendes, Fernando de Mello.
use of modal analysis in the mechanical characterization of- rock masses / Fernando de Mello Mendes, L. Aires de Barros-, F. Peres Rodrigues. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [7] p. - Memoria; No.340 / Laboratorio Nacional de Engenharia Civil .
use of modal analysis in the mechanical characterization of- rock masses / Fernando de Mello Mendes, L. Aires de Barros-, F. Peres Rodrigues. - Lisboa, Portugal : Laboratorio Nacional de Engenharia Civil - [7] p. - Memoria; No.340 / Laboratorio Nacional de Engenharia Civil .