Wolf, J.P.Meek, J.W.2007-04-242007-04-242007-04-24199410.1002/eqe.4290231004https://infoscience.epfl.ch/handle/20.500.14299/5685WOS:A1994PL72300003Dynamic stiffness of foundation on layered soil half-space using cone frustumtext::journal::journal article::research article