@article{10_1090_S0894_0347_98_00276_8,
     author = {Christ, Michael and Kiselev, Alexander},
     title = {Absolutely continuous spectrum for one-dimensional {Schr\~A{\textparagraph}dinger} operators with slowly decaying potentials: {Some} optimal results},
     journal = {Journal of the American Mathematical Society},
     pages = {771--797},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1998},
     doi = {10.1090/S0894-0347-98-00276-8},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-98-00276-8/}
}