@article{AA_2022_34_3_a10,
     author = {C. Liaw and S. Treil},
     title = {Preservation of absolutely continuous spectrum for contractive operators},
     journal = {Algebra i analiz},
     pages = {232--251},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2022_34_3_a10/}
}