@misc{10111, author = {{\r A}smund {\O}deg{\r a}rd and P. Fox and S. Holm and Aslak Tveito}, title = {Finite Element Modeling of Pulsed Bessel Beams and X-Waves Using Diffpack}, year = {2000}, journal = {Proceedings of 25th International Acoustical Imaging Symposium}, pages = {59-64}, publisher = {Kluwer}, address = {Bristol, UK,}, }