@misc{KleefeldLin2012, author = {Andreas Kleefeld and Tzu-Chu Lin}, title = {Boundary element collocation method for solving the exterior Neumann problem for Helmholtz's equation in three dimensions}, booktitle = {Electronic transactions on numerical analysis}, volume = {39}, issn = {1068-9613}, url = {http://etna.mcs.kent.edu/vol.39.2012/pp113-143.dir/pp113-143.pdf}, institution = {FG Numerische Mathematik und Wissenschaftliches Rechnen}, type = {articler}, pages = {113 -- 143}, year = {2012}, }