@article{ZschiedrichKloseSchaedleetal.2006, author = {Lin Zschiedrich and Roland Klose and Achim Sch{\"a}dle and Frank Schmidt}, title = {A new finite element realization of the Perfectly Matched Layer Method for Helmholtz scattering problems on polygonal domains in 2D}, journal = {J. Comput. Appl. Math.}, volume = {188}, pages = {12 -- 32}, doi = {10.1016/j.cam.2005.03.047}, year = {2006}, }