@article{SMJ2_2010_35_3_a5,
     author = {Demontis, Francesco and der Mee, Cornelis van},
     title = {Wave {Operators} for {Defocusing} {Matrix} {Zakharov-Shabat} {Systems} with {Pnonvanishing} at {Infinity}},
     journal = {Serdica Mathematical Journal},
     pages = {265--284},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2010_35_3_a5/}
}