@book{13361,
	author = {Ihlenburg, Frank},
	title = {Finite element analysis of acoustic scattering},
	publisher = {Springer Publishing Company},
	year = {1998},
	address = {New York},
	url = {https://libgen.is/book/index.php?md5=AC07CBFAD89AD4EE3CDDEF2105191A49}
}