TY - BOOK AU - Siggins,A.F. ED - Commonwealth Scientific and Industrial Research Organization (Australia) TI - A concentrated pressure-pulse on a semi-infinite rock-like medium: a comparison between theory and dynamic finite element calculations T2 - Technical report U1 - 624.1 PY - 1981/// CY - Mt. Waverley, Vic. PB - CSIRO, Institute of Earth Resources, Division of Applied Geomechanics KW - Rock mechanics KW - Finite element method ER -