@article{BUMI_2007_8_10B_3_a1,
     author = {Berti, Alessia},
     title = {Scattering {Matrix} for the {Reflection-Transmission} {Problem} in a {Viscoelastic} {Medium}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {521--533},
     publisher = {mathdoc},
     volume = {Ser. 8, 10B},
     number = {3},
     year = {2007},
     zbl = {1139.74419},
     mrnumber = {2351526},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2007_8_10B_3_a1/}
}