Botros, YY, Volakis, JL. (1999). Perfectly matched layer termination for finite-element meshes: Implementation and application
.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 23(3), 166-172. 10.1002/(SICI)1098-2760(19991105)23:3<166::AID-MOP11>3.3.CO;2-M
Botros, YY, Volakis, JL. (1999). Perfectly matched layer termination for finite-element meshes: Implementation and application
. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 23(3), 166-172. 10.1002/(SICI)1098-2760(19991105)23:3<166::AID-MOP11>3.3.CO;2-M