@article{AA_2004_16_3_a6,
     author = {M. Tikhomirov and N. Filonov},
     title = {Absolute continuity of an even periodic {Schr\"odinger} operator with nonsmooth coefficients},
     journal = {Algebra i analiz},
     pages = {201--210},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2004_16_3_a6/}
}