@article {, title = {Analysis of the Effects of Numerical Dispersion on Pulses in Finite-difference and Pseudospectral Time-domain Methods}, volume = {110}, number = {5}, year = {2001}, pages = {2618-2618}, publisher = {Acoustical Society of America}, address = {Melville, NY, USA}, keywords = {Other}, author = {Elston, Gareth R and Bell, J M and Capus, C G} }