@article{Ber-Mod-2021,
    author={Hadrien Beriot and Axel Modave },
    title={An automatic perfectly matched layer for acoustic finite 
           element simulations in convex domains of general shape },
    doi={10.1002/nme.6560 },
    journal={International Journal for Numerical Methods in Engineering },
    year={2021 },
    month={3},
    volume={122 },
}