Mócsai, Tamás, Diwoky, Franz, Hepberger, Achim, Priebsch, Hans-Herwig, AND Augusztinovicz, Fulop. " Application and analysis of an adaptive wave-based technique based on a boundary error indicator for the sound radiation simulation of a combustion engine model" Computer Assisted Methods in Engineering and Science [Online], Volume 22 Number 1 (25 January 2017)