@article{10_1007_s10492_014_0070_6,
     author = {Zapletal, Jan and Bouchala, Ji\v{r}{\'\i}},
     title = {Effective semi-analytic integration for hypersingular {Galerkin} boundary integral equations for the {Helmholtz} equation in {3D}},
     journal = {Applications of Mathematics},
     pages = {527--542},
     publisher = {mathdoc},
     volume = {59},
     number = {5},
     year = {2014},
     doi = {10.1007/s10492-014-0070-6},
     mrnumber = {3255794},
     zbl = {06391449},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-014-0070-6/}
}